Blackfin: MPU: add missing __init markings

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
diff --git a/arch/blackfin/kernel/cplb-mpu/cplbinit.c b/arch/blackfin/kernel/cplb-mpu/cplbinit.c
index b52c1f8..8d42b9e 100644
--- a/arch/blackfin/kernel/cplb-mpu/cplbinit.c
+++ b/arch/blackfin/kernel/cplb-mpu/cplbinit.c
@@ -92,6 +92,6 @@
 		icplb_tbl[cpu][i_i++].data = 0;
 }
 
-void generate_cplb_tables_all(void)
+void __init generate_cplb_tables_all(void)
 {
 }