MIPS/testsuite: Handle 64-bit addresses

Several MIPS test cases are suitable for the n64 ABI if not for the
extra leading zeros or spaces in addresses not handled by dump patterns.
Match the characters then, removing these regressions:

mips64-openbsd  -FAIL: .set arch=FOO
mips64-openbsd  -FAIL: ST Microelectronics Loongson-2F workarounds of nop issue
mips64-openbsd  -FAIL: MIPS DSP ASE for MIPS64
mips64-openbsd  -FAIL: gas/mips/align2
mips64-openbsd  -FAIL: gas/mips/align2-el
mips64-openbsd  -FAIL: Locally-resolvable PC-relative code references
mips64-openbsd  -FAIL: MIPS jalx-1
mips64-openbsd  -FAIL: JAL overflow 2
mips64el-openbsd  -FAIL: .set arch=FOO
mips64el-openbsd  -FAIL: ST Microelectronics Loongson-2F workarounds of nop issue
mips64el-openbsd  -FAIL: MIPS DSP ASE for MIPS64
mips64el-openbsd  -FAIL: gas/mips/align2
mips64el-openbsd  -FAIL: gas/mips/align2-el
mips64el-openbsd  -FAIL: Locally-resolvable PC-relative code references
mips64el-openbsd  -FAIL: MIPS jalx-1
mips64el-openbsd  -FAIL: JAL overflow 2

Co-Authored-By: Maciej W. Rozycki <macro@orcam.me.uk>

	gas/
	* testsuite/gas/mips/align2-el.d: Match extra leading zeros
	with addresses.
	* testsuite/gas/mips/align2.d: Likewise.
	* testsuite/gas/mips/compact-eh-eb-1.d: Likewise.
	* testsuite/gas/mips/compact-eh-eb-2.d: Likewise.
	* testsuite/gas/mips/compact-eh-eb-3.d: Likewise.
	* testsuite/gas/mips/compact-eh-eb-4.d: Likewise.
	* testsuite/gas/mips/compact-eh-eb-5.d: Likewise.
	* testsuite/gas/mips/compact-eh-eb-6.d: Likewise.
	* testsuite/gas/mips/compact-eh-el-1.d: Likewise.
	* testsuite/gas/mips/compact-eh-el-2.d: Likewise.
	* testsuite/gas/mips/compact-eh-el-3.d: Likewise.
	* testsuite/gas/mips/compact-eh-el-4.d: Likewise.
	* testsuite/gas/mips/compact-eh-el-5.d: Likewise.
	* testsuite/gas/mips/compact-eh-el-6.d: Likewise.
	* testsuite/gas/mips/loongson-2f-2.d: Likewise.
	* testsuite/gas/mips/loongson-2f-3.d: Likewise.
	* testsuite/gas/mips/mips-jalx.d: Likewise.
	* testsuite/gas/mips/mips64-dsp.d: Likewise.
	* testsuite/gas/mips/pcrel-1.d: Likewise.
	* testsuite/gas/mips/set-arch.d: Likewise.

	ld/
	* testsuite/ld-mips-elf/jaloverflow-2.d: Match extra leading
	zeros and spaces with addresses as appropriate.
	* testsuite/ld-mips-elf/jalx-1.d: Likewise.
	* testsuite/ld-mips-elf/reloc-estimate-1.d: Likewise.

(cherry picked from commit ec76a617)