kernel: Bump to 6.12.59

kernel: Add Waveshare 7-DSI-TOUCH-C screen support
See: raspberrypi/linux#7145

kernel: dtoverlays: tc358743: Update legacy compatible frag with cam0 override
See: raspberrypi/linux#7138

kernel: overlays: vc4-kms-v3d-pi5 parameter "composite" no longer disables HDMI
See: raspberrypi/linux#7150

Author: popcornmix

boot/kernel.img

@@ -5755,6 +5755,7 @@ Params: 3_4_inch_c              3.4" 800x800 2lane
         5_5_inch_a              5.5" 720x1280 2lane
         7_0_inch_a              7.0" A 720x1280 2lane
         7_0_inch_b              7.0" B 720x1280 2lane
+        7_0_inch_c              7.0" C 1024x600 2lane
         8_0_inch_a              8.0" 800x1280 2lane
         8_0_inch_a_4lane        8.0" 800x1280 4lane
         8_8_inch_a              8.8" 480x1920 2lane
@@ -5820,8 +5821,8 @@ Params: cma-512                 CMA is 512MB
         audio1                  Enable or disable audio over HDMI1 (default
                                 "on")
         noaudio                 Disable all HDMI audio (default "off")
-        composite               Enable the composite output (disables all other
-                                outputs)
+        composite               Enable the composite output (default "off")
+                                N.B. Disables all other outputs on a Pi 4.
         nohdmi                  Disable both HDMI 0 & 1 outputs
         nohdmi0                 Disable HDMI 0 output
         nohdmi1                 Disable HDMI 1 output