* libc/macine/arm/strcpy.S: Explicitly set build attributes when
building for thumb1 targets.
	* fhandler_procsys.cc (fhandler_procsys::read): Just call
	fhandler_base::raw_read from here.  Drop comment.
	(fhandler_procsys::write): Drop comment.
Correct the relocation names for R_AARCH64_TLSDESC_LD_PREL19 and R_AARCH64_TLSDESC_ADR_PAGE21.