video: zynqmp: Enable 1024x768 resolution

Add support for 1024x768 60p resolution and set it up this resolution by
default. This resolution is still able to use only one GT line. But for
example 800x600 60p has some issues with settings. That's why extend this
table by tested resolutions.

Signed-off-by: Michal Simek <michal.simek@amd.com>
Link: https://lore.kernel.org/r/957e1e85a05744326ec2606dadc1af6e69976f37.1684312924.git.michal.simek@amd.com
diff --git a/drivers/video/zynqmp/zynqmp_dpsub.c b/drivers/video/zynqmp/zynqmp_dpsub.c
index c287b47..def4dcf 100644
--- a/drivers/video/zynqmp/zynqmp_dpsub.c
+++ b/drivers/video/zynqmp/zynqmp_dpsub.c
@@ -27,8 +27,8 @@
 DECLARE_GLOBAL_DATA_PTR;
 
 /* Maximum supported resolution */
-#define WIDTH				640
-#define HEIGHT				480
+#define WIDTH				1024
+#define HEIGHT				768
 
 static struct dp_dma dp_dma;
 static struct dp_dma_descriptor cur_desc __aligned(256);
@@ -1995,7 +1995,7 @@
 	struct zynqmp_dpsub_priv *dp_sub = dev_get_priv(dev);
 
 	dp_sub->dp_dma               = &dp_dma;
-	dp_sub->video_mode           = VIDC_VM_640x480_60_P;
+	dp_sub->video_mode           = VIDC_VM_1024x768_60_P;
 	dp_sub->bpc                  = VIDC_BPC_8;
 	dp_sub->color_encode         = DP_CENC_RGB;
 	dp_sub->use_max_cfg_caps     = 1;