x86: Correct position of ".s" for CCMPcc in disassembler

Added new macro %SW to CCMPcc to print ".s" after the mnemonic.

Before:
ccmpbl {dfv=}.s %edx,%eax

After:
ccmpbl.s {dfv=} %edx,%eax

gas/ChangeLog:

        * testsuite/gas/i386/x86-64-pseudos-apx.d: Add tests for CCMPcc.
        * testsuite/gas/i386/x86-64-pseudos-apx.s: Ditto.

opcodes/ChangeLog:

        * i386-dis-evex.h: Added %SW for CCMPcc swap operands.
        * i386-dis.c (struct dis386): Added %SW.
        (putop): Handle %SW.