aarch64: libgcc: Cleanup ELF marking in asm

Use aarch64-asm.h in asm code consistently, this was started in

  commit c608ada2
  Author:     Zac Walker <zacwalker@microsoft.com>
  CommitDate: 2024-01-23 15:32:30 +0000

  Ifdef `.hidden`, `.type`, and `.size` pseudo-ops for `aarch64-w64-mingw32` target

But that commit failed to remove some existing markings from asm files,
which means some objects got double marked with gnu property notes.

libgcc/ChangeLog:

	* config/aarch64/crti.S: Remove stack marking.
	* config/aarch64/crtn.S: Remove stack marking, include aarch64-asm.h
	* config/aarch64/lse.S: Remove stack and GNU property markings.