arch/arm/boot/dts/overlays : Add Waveshare 6.25inch B screen support

Signed-off-by: Waveshare_Team <support@waveshare.com>

Author: Waveshare_Team

arch/arm/boot/dts/overlays/README

@@ -5923,6 +5923,7 @@ Params: 2_8_inch                2.8" 480x640
         4_0_inchC               4.0" 720x720
         5_0_inch                5.0" 720x1280
         6_25_inch               6.25" 720x1560
+        6_25_inchB              6.25" B 720x1560
         8_8_inch                8.8" 480x1920
         7_0_inchC               7.0" C 1024x600
         7_0_inchH               7.0" H 1280x720

arch/arm/boot/dts/overlays/vc4-kms-dsi-waveshare-panel-overlay.dts

@@ -125,6 +125,9 @@
 		6_25_inch = <&panel>, "compatible=waveshare,6.25inch-panel",
 				   <&touch>, "touchscreen-inverted-x?",
 				   <&touch>, "touchscreen-inverted-y?";
+		6_25_inchB = <&panel>, "compatible=waveshare,6.25inch-b-panel",
+				   <&touch>, "touchscreen-inverted-x?",
+				   <&touch>, "touchscreen-inverted-y?";
 		8_8_inch = <&panel>, "compatible=waveshare,8.8inch-panel";
 		13_3_inch_4lane = <&panel>, "compatible=waveshare,13.3inch-4lane-panel",
 				  <&touch2>, "status=okay";