video: seps525: Add seps525 SPI driver

Add support for the WiseChip Semiconductor Inc. (UG-6028GDEBF02) display
using the SEPS525 (Syncoam) LCD Controller. Syncoam Seps525 PM-Oled is RGB
160x128 display. This driver has been tested through zynq-spi driver.

ZynqMP> load mmc 1 100000 rainbow.bmp
61562 bytes read in 20 ms (2.9 MiB/s)
ZynqMP> bmp info 100000
Image size    : 160 x 128
Bits per pixel: 24
Compression   : 0
ZynqMP> bmp display 100000
ZynqMP> setenv stdout vidconsole

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig
index 998271b..7136340 100644
--- a/drivers/video/Kconfig
+++ b/drivers/video/Kconfig
@@ -652,6 +652,13 @@
 	   HDMI. This option enables this support which can be used on devices
 	   which have an eDP display connected.
 
+config VIDEO_SEPS525
+	bool "Enable video support for Seps525"
+	depends on DM_VIDEO
+	help
+	  Enable support for the Syncoam PM-OLED display driver (RGB 160x128).
+	  Currently driver is supporting only SPI interface.
+
 source "drivers/video/nexell/Kconfig"
 
 config VIDEO