s390/gs: add compat regset for the guarded storage broadcast control block

git commit e525f8a6
"s390/gs: add regset for the guarded storage broadcast control block"
added the missing regset to the s390_regsets array but failed to add it
to the s390_compat_regsets array.

Fixes: e525f8a6 ("add compat regset for the guarded storage broadcast control block")
Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>

arch/s390/kernel/ptrace.c

@@ -1650,6 +1650,14 @@ static const struct user_regset s390_compat_regsets[] = {
 		.get = s390_gs_cb_get,
 		.set = s390_gs_cb_set,
 	},
+	{
+		.core_note_type = NT_S390_GS_BC,
+		.n = sizeof(struct gs_cb) / sizeof(__u64),
+		.size = sizeof(__u64),
+		.align = sizeof(__u64),
+		.get = s390_gs_bc_get,
+		.set = s390_gs_bc_set,
+	},
 	{
 		.core_note_type = NT_S390_RI_CB,
 		.n = sizeof(struct runtime_instr_cb) / sizeof(__u64),