sh: Fix PTRACE_PEEKTEXT/PEEKDATA fallout from generic_ptrace_peekdata().

When generic_ptrace_peekdata() was merged, the break for these cases
ended up getting dropped, which lead to each PEEKTEXT/PEEKDATA op leaking
in to PEEKUSR and get_user_pages() always -EFAULTing. Add the break back
in.
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

arch/sh/kernel/ptrace.c

@@ -93,6 +93,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
 	case PTRACE_PEEKTEXT: /* read word at location addr. */
 	case PTRACE_PEEKDATA:
 		ret = generic_ptrace_peekdata(child, addr, data);
+		break;
 
 	/* read the word at location addr in the USER area. */
 	case PTRACE_PEEKUSR: {