libsanitizer: Use SSE to save and restore XMM registers

libsanitizer: Use SSE to save and restore XMM registers

Use SSE, instead of AVX, to save and restore XMM registers to support
processors without AVX.  The affected codes are unused in upstream since

https://github.com/llvm/llvm-project/commit/66d4ce7e26a5

and will be removed in

https://reviews.llvm.org/D112604

This fixed

FAIL: g++.dg/tsan/pthread_cond_clockwait.C   -O0  execution test
FAIL: g++.dg/tsan/pthread_cond_clockwait.C   -O2  execution test

on machines without AVX.

	PR sanitizer/103466
	* tsan/tsan_rtl_amd64.S (__tsan_trace_switch_thunk): Replace
	vmovdqu with movdqu.
	(__tsan_report_race_thunk): Likewise.