drivers: video: add the YUV24 format

Introduce the YUV24 format following the Linux V4L2 naming and
fourcc definition.

Signed-off-by: Josuah Demangeon <[email protected]>

Author: josuah

include/zephyr/drivers/video.h

@@ -1333,6 +1333,13 @@ void video_closest_frmival(const struct device *dev, enum video_endpoint_id ep,
  */
 #define VIDEO_PIX_FMT_UYVY VIDEO_FOURCC('U', 'Y', 'V', 'Y')
 
+/**
+ * @code{.unparsed}
+ * | Yyyyyyyy Uuuuuuuu Vvvvvvvv | ...
+ * @endcode
+ */
+#define VIDEO_PIX_FMT_YUV24 VIDEO_FOURCC('Y', 'U', 'V', '3')
+
 /**
  * The first byte is empty (X) for each pixel.
  *
@@ -1419,6 +1426,7 @@ static inline unsigned int video_bits_per_pixel(uint32_t pixfmt)
 		return 16;
 	case VIDEO_PIX_FMT_BGR24:
 	case VIDEO_PIX_FMT_RGB24:
+	case VIDEO_PIX_FMT_YUV24:
 		return 24;
 	case VIDEO_PIX_FMT_XRGB32:
 	case VIDEO_PIX_FMT_XYUV32: