staging: sm7xxfb: make vgamode static

the variable vgamode is used only in this file and hence can be
safely made as static.

Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/staging/sm7xxfb/sm7xx.h b/drivers/staging/sm7xxfb/sm7xx.h
index 7cc1896..c5d6253 100644
--- a/drivers/staging/sm7xxfb/sm7xx.h
+++ b/drivers/staging/sm7xxfb/sm7xx.h
@@ -119,7 +119,7 @@
 /**********************************************************************
 			 SM712 Mode table.
  **********************************************************************/
-struct ModeInit vgamode[] = {
+static struct ModeInit vgamode[] = {
 	{
 	 /*  mode#0: 640 x 480  16Bpp  60Hz */
 	 640, 480, 16, 60,