lib2hw_mul.S: Fix wrong syntax in branch instruction.

lib2hw_mul.S: Fix wrong syntax in branch instruction.

2019-10-23  Jozef Lawrynowicz  <jozef.l@mittosystems.com>

	* config/msp430/lib2hw_mul.S: Fix wrong syntax in branch instruction.
	s/RESULT_LO/RESLO, s/RESULT_HI/RESHI, s/MPY_OP1/MPY,
	s/MPY_OP1_S/MPYS, s/MAC_OP1/MAC, s/MPY_OP2/OP2, s/MAC_OP2/OP2.
	Define symbols for 32-bit and f5series hardware multiply
	register addresses.
	Replace hard-coded register addresses with symbols.
	Fix "_mspabi*" typo.
	Fix whitespace.
	* config/msp430/lib2mul.c: Add comment.

From-SVN: r277340