* s390-tdep.c (s390_frame_saved_pc_nofix): If we get the saved PC

* s390-tdep.c (s390_frame_saved_pc_nofix): If we get the saved PC
out of the return address register, cache that in the frame's
extra info, just as if we'd gotten it from the saved regs array;
that way, it's not a lie to set the saved_pc_valid flag.