rockchip: rk3308: Move cru and grf include files to arch-rockchip

Move cru_rk3308.h and grf_rk3308.h to arch-rockchip to match path used
for all other Rockchip SoCs.

Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
diff --git a/drivers/net/gmac_rockchip.c b/drivers/net/gmac_rockchip.c
index 33fc36d..51f835a 100644
--- a/drivers/net/gmac_rockchip.c
+++ b/drivers/net/gmac_rockchip.c
@@ -19,7 +19,7 @@
 #include <asm/arch-rockchip/grf_px30.h>
 #include <asm/arch-rockchip/grf_rk322x.h>
 #include <asm/arch-rockchip/grf_rk3288.h>
-#include <asm/arch-rk3308/grf_rk3308.h>
+#include <asm/arch-rockchip/grf_rk3308.h>
 #include <asm/arch-rockchip/grf_rk3328.h>
 #include <asm/arch-rockchip/grf_rk3368.h>
 #include <asm/arch-rockchip/grf_rk3399.h>