gpu: Move ipu-v3 to imx folder

The new imx folder may contain ipu-v3 and dpu common drivers.

Signed-off-by: Liu Ying <victor.liu@nxp.com>
[ Aisheng: fix source path ]
Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>

drivers/gpu/Makefile

@@ -3,5 +3,5 @@
 # taken to initialize them in the correct order. Link order is the only way
 # to ensure this currently.
 obj-$(CONFIG_TEGRA_HOST1X)	+= host1x/
+obj-y			+= imx/
 obj-y			+= drm/ vga/
-obj-$(CONFIG_IMX_IPUV3_CORE)	+= ipu-v3/

drivers/gpu/imx/Kconfig

@@ -0,0 +1 @@
+source "drivers/gpu/imx/ipu-v3/Kconfig"

drivers/gpu/imx/Makefile

@@ -0,0 +1 @@
+obj-$(CONFIG_IMX_IPUV3_CORE)	+= ipu-v3/

drivers/video/Kconfig

@@ -15,7 +15,7 @@ source "drivers/char/agp/Kconfig"
 source "drivers/gpu/vga/Kconfig"
 
 source "drivers/gpu/host1x/Kconfig"
-source "drivers/gpu/ipu-v3/Kconfig"
+source "drivers/gpu/imx/Kconfig"
 
 source "drivers/gpu/drm/Kconfig"