s390: Add suffix to conditional branch instruction descriptions

s390: Add suffix to conditional branch instruction descriptions

Suffix the instruction description of conditional branch extended
mnemonics with their condition (e.g. "on A high"). This complements
the optional printing of instruction descriptions as comments in the
disassembly.

Due to the added text the maximum description length is increased from
80 to 128 characters (including the trailing '\0' character).

opcodes/
	* s390-mkopc.c: Add suffix to conditional branch extended
	  mnemonic instruction descriptions.

gas/
	* testsuite/gas/s390/zarch-insndesc.s: Add test cases for
	  printing of suffixed instruction description of conditional
	  branch extended mnemonics.
	* testsuite/gas/s390/zarch-insndesc.d: Likewise.

Signed-off-by: Jens Remus <jremus@linux.ibm.com>
Reviewed-by: Andreas Krebbel <krebbel@linux.ibm.com>