Out of bounds in xilinx_spips_write()
Description of problem:
The size of TYPE_XILINX_SPIPS's and TYPE_XILINX_QSPIPS's memory regions is
0x100, but it is set to 0x200. UBSAN captures Out of bounds accesses.
Steps to reproduce:
```
export QEMU=/path/to/qemu-system-aarch64
export UBSAN_OPTIONS=halt_on_error=1:symbolize=1:print_stacktrace=1

cat << EOF | $QEMU \
-machine xlnx-zcu102 -monitor none -serial none \
-display none -nodefaults -qtest stdio
writew 0xff050108 0x29be
EOF
```
Additional information:
```
==852678==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases!
[I 0.000001] OPENED
pulseaudio: set_sink_input_volume() failed
pulseaudio: Reason: Invalid argument
pulseaudio: set_sink_input_mute() failed
pulseaudio: Reason: Invalid argument
qemu-system-aarch64: warning: nic cadence_gem.0 has no peer
qemu-system-aarch64: warning: nic cadence_gem.1 has no peer
qemu-system-aarch64: warning: nic cadence_gem.2 has no peer
qemu-system-aarch64: warning: nic cadence_gem.3 has no peer
[R +0.323364] writew 0xff050108 0x29be
../hw/ssi/xilinx_spips.c:1031:22: runtime error: index 66 out of bounds for type 'uint32_t [64]'
    #0 0x55b7450b6895 in xilinx_spips_write /home/liuqiang/project-videzzo/qemu-devel/build/../hw/ssi/xilinx_spips.c:1031:22
    #1 0x55b747b29790 in memory_region_write_accessor /home/liuqiang/project-videzzo/qemu-devel/build/../softmmu/memory.c:493:5
    #2 0x55b747b28c2d in access_with_adjusted_size /home/liuqiang/project-videzzo/qemu-devel/build/../softmmu/memory.c:555:18
    #3 0x55b747b268f4 in memory_region_dispatch_write /home/liuqiang/project-videzzo/qemu-devel/build/../softmmu/memory.c:1515:16
    #4 0x55b747c1a071 in flatview_write_continue /home/liuqiang/project-videzzo/qemu-devel/build/../softmmu/physmem.c:2825:23
    #5 0x55b747c00d92 in flatview_write /home/liuqiang/project-videzzo/qemu-devel/build/../softmmu/physmem.c:2867:12
    #6 0x55b747c007b8 in address_space_write /home/liuqiang/project-videzzo/qemu-devel/build/../softmmu/physmem.c:2963:18
    #7 0x55b747c49f31 in qtest_process_command /home/liuqiang/project-videzzo/qemu-devel/build/../softmmu/qtest.c:528:13
    #8 0x55b747c42f6e in qtest_process_inbuf /home/liuqiang/project-videzzo/qemu-devel/build/../softmmu/qtest.c:802:9
    #9 0x55b747c5b783 in qtest_read /home/liuqiang/project-videzzo/qemu-devel/build/../softmmu/qtest.c:814:5
    #10 0x55b748c6b602 in qemu_chr_be_write_impl /home/liuqiang/project-videzzo/qemu-devel/build/../chardev/char.c:201:9
    #11 0x55b748c6b74a in qemu_chr_be_write /home/liuqiang/project-videzzo/qemu-devel/build/../chardev/char.c:213:9
    #12 0x55b748c81f6a in fd_chr_read /home/liuqiang/project-videzzo/qemu-devel/build/../chardev/char-fd.c:72:9
    #13 0x55b7481cbe66 in qio_channel_fd_source_dispatch /home/liuqiang/project-videzzo/qemu-devel/build/../io/channel-watch.c:84:12
    #14 0x7fbad3de404d in g_main_context_dispatch (/lib/x86_64-linux-gnu/libglib-2.0.so.0+0x5204d)
    #15 0x55b74923a917 in glib_pollfds_poll /home/liuqiang/project-videzzo/qemu-devel/build/../util/main-loop.c:297:9
    #16 0x55b749238017 in os_host_main_loop_wait /home/liuqiang/project-videzzo/qemu-devel/build/../util/main-loop.c:320:5
    #17 0x55b749237967 in main_loop_wait /home/liuqiang/project-videzzo/qemu-devel/build/../util/main-loop.c:606:11
    #18 0x55b745858753 in qemu_main_loop /home/liuqiang/project-videzzo/qemu-devel/build/../softmmu/runstate.c:739:9
    #19 0x55b74304cf34 in qemu_default_main /home/liuqiang/project-videzzo/qemu-devel/build/../softmmu/main.c:37:14
    #20 0x55b74304cfd0 in main /home/liuqiang/project-videzzo/qemu-devel/build/../softmmu/main.c:48:12
    #21 0x7fbad227a082 in __libc_start_main /build/glibc-SzIz7B/glibc-2.31/csu/../csu/libc-start.c:308:16
    #22 0x55b742fa271d in _start (/home/liuqiang/project-videzzo/qemu-devel/build/qemu-system-aarch64+0x3dc371d)

SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior ../hw/ssi/xilinx_spips.c:1031:22 in
```