Do not define MAP_ANONYMOUS on Android
Do not define MAP_ANONYMOUS on Android

Because bionic/libc/kernel/arch-arm/asm/mman.h defines MAP_ANONYMOUS without
a check whether it is already defined or not.

Signed-off-by: Ken Werner <2f69c0a88106c73f71230d1f0db723951b66f965@ocdc-kvm.(none)>

0xlab/0xdroid-external_libunwind,0xlab/0xdroid-external_libunwind,0xlab/0xdroid-external_libunwind