Blackfin arch: SMP supporting patchset: Blackfin kernel and memory management code

Blackfin dual core BF561 processor can support SMP like features.
https://docs.blackfin.uclinux.org/doku.php?id=linux-kernel:smp-like

In this patch, we provide SMP extend to Blackfin kernel and memory management code

Singed-off-by: Graf Yang <graf.yang@analog.com>
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>

diff --git a/arch/blackfin/kernel/entry.S b/arch/blackfin/kernel/entry.S
index faea88e..c0c3fe8 100644
--- a/arch/blackfin/kernel/entry.S
+++ b/arch/blackfin/kernel/entry.S
@@ -30,6 +30,7 @@
 #include <linux/linkage.h>
 #include <asm/thread_info.h>
 #include <asm/errno.h>
+#include <asm/blackfin.h>
 #include <asm/asm-offsets.h>
 
 #include <asm/context.S>