s390: Flag conditional branch relative insns as condjump

Flag conditional branch relative (extended) mnemonics clij* and clgij*
as "condjump" for jump visualization in disassembly. They were missed
to be flagged as such in commit c5306fed

 ("s390: Support for jump
visualization in disassembly").

opcodes/
	* s390-opc.txt: Flag conditional branch relative instructions
	clij* and clgij* as condjump for jump visualization in
	disassembly.

Signed-off-by: Jens Remus <jremus@linux.ibm.com>
Acked-by: Nick Clifton <nickc@redhat.com>