Fix for STAR9000593624

        Port from
        2013-03-19  Claudiu Zissulescu <claziss@synopsys.com>
        gas/
        * config/tc-arc.c (md_assemble): Fixup fix for STAR9000593624.
        opcodes/
        * arc-opc-old.c (arc_operands_ac): Remove ARC_OPERAND_LIMM from 'o'
        operand.

Conflicts:
	gas/config/tc-arc.c
	opcodes/arc-opc.c
Further fix on gas-fixups. STAR9000593624

        Port from
        2013-04-02  Claudiu Zissulescu <claziss@synopsys.com>
        gas/
        * config/tc-arc.c (md_assemble): Fix fixup for %st operand.
        opcodes/
        * arc-opc-old.c (insert_offset): Change error message.

Conflicts:
	gas/config/tc-arc.c
	opcodes/arc-opc.c