ANDROID: enable LLVM_IAS=1 for clang's integrated assembler for arm
Step 8 of:
https://android.googlesource.com/platform/prebuilts/clang/host/linux-x86/+/master/BINUTILS_KERNEL_DEPRECATION.md
Bug: 141693040
Signed-off-by: Nick Desaulniers <[email protected]>
Change-Id: I092cc14194fae5fba42c9a09b8eb8dd2adcb1377