microMIPS/GAS: Handle several percent-ops with macros

microMIPS/GAS: Handle several percent-ops with macros

In the microMIPS mode also accept %half, %got, %call, %got_hi, %got_lo,
%call_hi, %call_lo, %neg, %got_page, %highest, %got_disp, %tlsgd,
%tlsldm, %dtprel_hi, %dtprel_lo, %gottprel, %tprel_hi and %tprel_lo
percent-ops with macros, so that they can be used with instructions that
expand into sequences if relocation is required due to their limited
offset span, such as LL, LWL, etc., fixing GAS assertions:

.../gas/testsuite/gas/mips/elf-rel28.s: Assembler messages:
.../gas/testsuite/gas/mips/elf-rel28.s:17: Internal error in macro_build at .../gas/config/tc-mips.c:8854.
Please report this bug.

observed if an attempt is made to assemble the `elf-rel28.s' test case
modified to use one of the affected instructions to microMIPS code.

	gas/
	* config/tc-mips.c (macro_build) <'i', 'j'>: Also accept
	BFD_RELOC_16, BFD_RELOC_MIPS_GOT16, BFD_RELOC_MIPS_CALL16,
	BFD_RELOC_MIPS_GOT_HI16, BFD_RELOC_MIPS_GOT_LO16,
	BFD_RELOC_MIPS_CALL_HI16, BFD_RELOC_MIPS_CALL_LO16,
	BFD_RELOC_MIPS_SUB, BFD_RELOC_MIPS_GOT_PAGE,
	BFD_RELOC_MIPS_HIGHEST, BFD_RELOC_MIPS_GOT_DISP,
	BFD_RELOC_MIPS_TLS_GD, BFD_RELOC_MIPS_TLS_LDM,
	BFD_RELOC_MIPS_TLS_DTPREL_HI16, BFD_RELOC_MIPS_TLS_DTPREL_LO16,
	BFD_RELOC_MIPS_TLS_GOTTPREL, BFD_RELOC_MIPS_TLS_TPREL_HI16 and
	BFD_RELOC_MIPS_TLS_TPREL_LO16 relocations if in the microMIPS
	mode.
	* testsuite/gas/mips/elf-rel28-lldscd-n32.d: New test.
	* testsuite/gas/mips/elf-rel28-lldscd-micromips-n32.d: New test.
	* testsuite/gas/mips/elf-rel28-lldscd-n64.d: New test.
	* testsuite/gas/mips/elf-rel28-lldscd-micromips-n64.d: New test.
	* testsuite/gas/mips/elf-rel28.s: Add instruction selection.
	* testsuite/gas/mips/mips.exp: Run the new tests.