gpu: ipu-v3: image-convert: enable V4L2_PIX_FMT_BGRX32 and _RGBX32

Enable image converter support for V4L2_PIX_FMT_BGRX32 and
V4L2_PIX_FMT_RGBX32 pixel formats.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
diff --git a/drivers/gpu/ipu-v3/ipu-image-convert.c b/drivers/gpu/ipu-v3/ipu-image-convert.c
index 9d25db6..5be7fff 100644
--- a/drivers/gpu/ipu-v3/ipu-image-convert.c
+++ b/drivers/gpu/ipu-v3/ipu-image-convert.c
@@ -252,6 +252,12 @@ static const struct ipu_image_pixfmt image_convert_formats[] = {
 		.fourcc	= V4L2_PIX_FMT_XBGR32,
 		.bpp    = 32,
 	}, {
+		.fourcc	= V4L2_PIX_FMT_BGRX32,
+		.bpp    = 32,
+	}, {
+		.fourcc	= V4L2_PIX_FMT_RGBX32,
+		.bpp    = 32,
+	}, {
 		.fourcc	= V4L2_PIX_FMT_YUYV,
 		.bpp    = 16,
 		.uv_width_dec = 2,