MIPS/BFD: Include the addend in JALX's target alignment verification

MIPS/BFD: Include the addend in JALX's target alignment verification

On RELA targets the addend can affect JALX target's alignment, so only
verify it once the whole relocation calculation has completed.

	bfd/
	* elfxx-mips.c (mips_elf_calculate_relocation) <R_MIPS16_26>
	<R_MIPS_26, R_MICROMIPS_26_S1>: Include the addend in JALX's
	target alignment verification.

	ld/
	* testsuite/ld-mips-elf/unaligned-jalx-addend-0.d: New test.
	* testsuite/ld-mips-elf/unaligned-jalx-addend-1.d: New test.
	* testsuite/ld-mips-elf/unaligned-jalx-addend-mips16-0.d: New
	test.
	* testsuite/ld-mips-elf/unaligned-jalx-addend-mips16-1.d: New
	test.
	* testsuite/ld-mips-elf/unaligned-jalx-addend-micromips-0.d: New
	test.
	* testsuite/ld-mips-elf/unaligned-jalx-addend-micromips-1.d: New
	test.
	* testsuite/ld-mips-elf/unaligned-jalx-addend-0.s: New test
	source.
	* testsuite/ld-mips-elf/unaligned-jalx-addend-1.s: New test
	source.
	* testsuite/ld-mips-elf/mips-elf.exp: Run the new tests.