drm/dsc: fix DP_DSC_MAX_BPP_DELTA_* macro values

The macro values just don't match the specs. Fix them.

Fixes: 1482ec0 ("drm: Add missing DP DSC extended capability definitions.")
Cc: Vinod Govindapillai <[email protected]>
Cc: Stanislav Lisovskiy <[email protected]>
Signed-off-by: Jani Nikula <[email protected]>
Reviewed-by: Ankit Nautiyal <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]

Author: jnikula

include/drm/display/drm_dp.h

@@ -286,8 +286,8 @@
 
 #define DP_DSC_MAX_BITS_PER_PIXEL_HI        0x068   /* eDP 1.4 */
 # define DP_DSC_MAX_BITS_PER_PIXEL_HI_MASK  (0x3 << 0)
-# define DP_DSC_MAX_BPP_DELTA_VERSION_MASK  0x06
-# define DP_DSC_MAX_BPP_DELTA_AVAILABILITY  0x08
+# define DP_DSC_MAX_BPP_DELTA_VERSION_MASK  (0x3 << 5)	/* eDP 1.5 & DP 2.0 */
+# define DP_DSC_MAX_BPP_DELTA_AVAILABILITY  (1 << 7)	/* eDP 1.5 & DP 2.0 */
 
 #define DP_DSC_DEC_COLOR_FORMAT_CAP         0x069
 # define DP_DSC_RGB                         (1 << 0)