aarch64*-*-*ilp32 gas tests

aarch64*-*-*ilp32 gas tests

The new pac_negate_ra_state test adds yet another failure on aarch64
ipl32 targets.  This patch fixes that particular problem and a few
more that are trivial to fix.

	* testsuite/gas/aarch64/bfloat16.d: Match 32-bit and 64-bit output.
	* testsuite/gas/aarch64/dgh.d: Likewise.
	* testsuite/gas/aarch64/f32mm.d: Likewise.
	* testsuite/gas/aarch64/f64mm.d: Likewise.
	* testsuite/gas/aarch64/i8mm.d: Likewise.
	* testsuite/gas/aarch64/pac_ab_key.d: Likewise.
	* testsuite/gas/aarch64/pac_negate_ra_state.d: Likewise.
	* testsuite/gas/aarch64/reloc-prel_g0.d: Likewise.
	* testsuite/gas/aarch64/reloc-prel_g0_nc.d: Likewise.
	* testsuite/gas/aarch64/reloc-prel_g1.d: Likewise.
	* testsuite/gas/aarch64/sve-bfloat-movprfx.d: Likewise.
	* testsuite/gas/aarch64/sve-movprfx-mm.d: Likewise.
	* testsuite/gas/aarch64/sve2.d: Likewise.