powerpc/32s: Fix setup_{kuap/kuep}() on SMP

On SMP, setup_kup() is also called from start_secondary().

start_secondary() is not an __init function.

Remove the __init marker from setup_kuep() and setup_kuap().

Fixes: 86f46f34 ("powerpc/32s: Initialise KUAP and KUEP in C")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/42f4bd12b476942e4d5dc81c0e839d8871b20b1c.1624863319.git.christophe.leroy@csgroup.eu

arch/powerpc/mm/book3s32/kuap.c

@@ -18,7 +18,7 @@ void kuap_unlock_all_ool(void)
 }
 EXPORT_SYMBOL(kuap_unlock_all_ool);
 
-void __init setup_kuap(bool disabled)
+void setup_kuap(bool disabled)
 {
 	if (!disabled)
 		kuap_lock_all_ool();

arch/powerpc/mm/book3s32/kuep.c

@@ -5,7 +5,7 @@
 
 struct static_key_false disable_kuep_key;
 
-void __init setup_kuep(bool disabled)
+void setup_kuep(bool disabled)
 {
 	if (!disabled)
 		kuep_lock();