[compiler-rt] Drop CRT_HAS_128BIT routines on Android

[Duane Sand]

The attached patch is an urgent workaround in builds of the compiler-rt component of Android.  The recently-added CRT_HAS_128BIT routines make use of host compiler support of 128-bit ints via the mode(TI) compiler extension.  The mips64 llvm compiler back end crashes on uses of that extension.  The affected new routines are present but unused on Android.  The quickest way to work around the back end crash is to omit the CRT_HAS_128BIT routines from the Android build.

This change could be made permanent, as Google has no plans to expose or use the 128-bit-int extension on Android.



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