Add arch/generic.c to non-AArch64 64-bit libclcore

Bug: 23687554

Include arch/generic.c to libclcore.bc for non-AArch64 targets.  This
should only affect MIPS64.  x86 uses libclcore_x86.bc, which is built
separately.

Change-Id: Ifbc02e38cbe44265eac55f7277453eb2326b40cc
1 file changed