EDAC, skx_edac: Fix non static symbol warnings

Fix the following sparse warnings:

  drivers/edac/skx_edac.c:266:25: warning:
   symbol 'skx_cpuids' was not declared. Should it be static?
  drivers/edac/skx_edac.c:1040:12: warning:
   symbol 'skx_init' was not declared. Should it be static?

Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: linux-edac <linux-edac@vger.kernel.org>
Link: http://lkml.kernel.org/r/1477147098-2842-1-git-send-email-weiyj.lk@gmail.com
Signed-off-by: Borislav Petkov <bp@suse.de>

drivers/edac/skx_edac.c

@@ -263,7 +263,7 @@ fail:
 	return -ENODEV;
 }
 
-const struct x86_cpu_id skx_cpuids[] = {
+static const struct x86_cpu_id skx_cpuids[] = {
 	{ X86_VENDOR_INTEL, 6, INTEL_FAM6_SKYLAKE_X, 0, 0 },
 	{ }
 };
@@ -1037,7 +1037,7 @@ static void skx_remove(void)
  *	search for all the devices we need
  *	check which DIMMs are present.
  */
-int __init skx_init(void)
+static int __init skx_init(void)
 {
 	const struct x86_cpu_id *id;
 	const struct munit *m;