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

Recent
change (https://gcc.gnu.org/pipermail/gcc-cvs/2023-December/394915.html)
added a generic SME support using `.hidden`, `.type`, and ``.size`
pseudo-ops in the assembly sources, `aarch64-w64-mingw32` does not
support the pseudo-ops though. This patch wraps usage of those
pseudo-ops using macros and ifdefs them for `__ELF__` define.

libgcc/
	* config/aarch64/aarch64-asm.h (HIDDEN, SYMBOL_SIZE, SYMBOL_TYPE)
	(ENTRY_ALIGN, GNU_PROPERTY): New macros.
	* config/aarch64/__arm_sme_state.S: Use them.
	* config/aarch64/__arm_tpidr2_save.S: Likewise.
	* config/aarch64/__arm_za_disable.S: Likewise.
	* config/aarch64/crti.S: Likewise.
	* config/aarch64/lse.S: Likewise.