fix arm __tlsdesc_dynamic when built as thumb code without __ARM_ARCH>=5
[musl] / arch / powerpc / bits / hwcap.h
2018-02-22 Szabolcs Nagypowerpc: update hwcap.h for linux v4.15
2016-10-20 Szabolcs Nagyadd bits/hwcap.h and include it in sys/auxv.h