Drivers:staging:dgap: Added a blank line after declaration

This patch fixes the checkpatch.pl warning:

WARNING:Missing a blank line after declaration

Signed-off-by: Anjana Sasindran <anjanasasindran123@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/dgap/dgap.c

@@ -4414,6 +4414,7 @@ static struct board_t *find_board_by_major(unsigned int major)
 
 	for (i = 0; i < MAXBOARDS; i++) {
 		struct board_t *brd = dgap_board[i];
+
 		if (!brd)
 			return NULL;
 		if (major == brd->serial_driver->major ||