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>