target-ppc: Enable ISEL on POWER7

ISEL is a Power ISA 2.06 instruction and thus is available on POWER7.
Given this is trapped and emulated by the Linux kernel, I guess it went
unnoticed.
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>
Signed-off-by: NAlexander Graf <agraf@suse.de>

target-ppc/translate_init.c

@@ -7004,7 +7004,7 @@ POWERPC_FAMILY(POWER7)(ObjectClass *oc, void *data)
     dc->desc = "POWER7";
     pcc->init_proc = init_proc_POWER7;
     pcc->check_pow = check_pow_nocheck;
-    pcc->insns_flags = PPC_INSNS_BASE | PPC_STRING | PPC_MFTB |
+    pcc->insns_flags = PPC_INSNS_BASE | PPC_ISEL | PPC_STRING | PPC_MFTB |
                        PPC_FLOAT | PPC_FLOAT_FSEL | PPC_FLOAT_FRES |
                        PPC_FLOAT_FSQRT | PPC_FLOAT_FRSQRTE |
                        PPC_FLOAT_STFIWX |