memory: ti-gpmc: Fix build

sys_proto.h no longer exists for K3 platform so drop it.
Include sizes.h to so SZ_16M is visible.

Signed-off-by: Roger Quadros <rogerq@kernel.org>
Reviewed-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
Link: https://www.mail-archive.com/u-boot@lists.denx.de/msg499176.html
Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
diff --git a/drivers/memory/ti-gpmc.c b/drivers/memory/ti-gpmc.c
index 775e78c..0b86743 100644
--- a/drivers/memory/ti-gpmc.c
+++ b/drivers/memory/ti-gpmc.c
@@ -6,7 +6,6 @@
  */
 
 #include <asm/io.h>
-#include <asm/arch/sys_proto.h>
 #include <clk.h>
 #include <common.h>
 #include <dm.h>
@@ -17,6 +16,7 @@
 #include <linux/mtd/omap_gpmc.h>
 #include <linux/ioport.h>
 #include <linux/io.h>
+#include <linux/sizes.h>
 #include "ti-gpmc.h"
 
 enum gpmc_clk_domain {