EDAC, pnd2: Make function sbi_send() static

The function sbi_send() is local to just pnd2_edac.c and does not need
to be in global scope, so make it static.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: linux-edac <linux-edac@vger.kernel.org>
Link: http://lkml.kernel.org/r/20170623084855.9197-1-colin.king@canonical.com
Signed-off-by: Borislav Petkov <bp@suse.de>

drivers/edac/pnd2_edac.c

@@ -131,7 +131,7 @@ static struct mem_ctl_info *pnd2_mci;
 
 #ifdef CONFIG_X86_INTEL_SBI_APL
 #include "linux/platform_data/sbi_apl.h"
-int sbi_send(int port, int off, int op, u32 *data)
+static int sbi_send(int port, int off, int op, u32 *data)
 {
 	struct sbi_apl_message sbi_arg;
 	int ret, read = 0;
@@ -160,7 +160,7 @@ int sbi_send(int port, int off, int op, u32 *data)
 	return ret;
 }
 #else
-int sbi_send(int port, int off, int op, u32 *data)
+static int sbi_send(int port, int off, int op, u32 *data)
 {
 	return -EUNATCH;
 }