rpi: update to 6.12.21

target/linux/Config.in.kernelversion

@@ -261,7 +261,7 @@ config ADK_TARGET_LINUX_KERNEL_GIT
 	default "f6e9dab9d1dc1e8fa2acb75504bf5ff86b885b8e" if ADK_TARGET_CPU_ARC_ARC32 || ADK_TARGET_CPU_ARC_ARC64
 	default "b02c139d3608c8ae87f5398a3a29854f6df7a041" if ADK_TARGET_ARCH_KVX
 	default "6a2f2e4198eaff63ee75f6085ce9f966c47b4441" if ADK_TARGET_ARCH_LM32
-	default "a320d39840745502d420f56b3d49b3723a12058f" if ADK_TARGET_BOARD_BCM28XX
+	default "dd03775ac7638ec56fb6aec35e7932755f282f60" if ADK_TARGET_BOARD_BCM28XX
 	default "f8d3b2a0fa5054aaed0f14cd457db9d8922bb167" if ADK_TARGET_SYSTEM_ADSP_BF537
 	default "e7c8afc1dda7b7c18596d90ad6a17ae886650b72" if ADK_TARGET_SYSTEM_KINETIS_K70
 	default "902739f3353150ac9eb69ad995098f3079d862a3" if ADK_TARGET_SYSTEM_SOLIDRUN_CLEARFOG
@@ -273,7 +273,7 @@ config ADK_TARGET_LINUX_KERNEL_GIT
 config ADK_TARGET_LINUX_KERNEL_GIT_VER
 	string "kernel version"
 	depends on ADK_TARGET_LINUX_KERNEL_VERSION_GIT
-	default "6.6.74" if ADK_TARGET_BOARD_BCM28XX
+	default "6.12.21" if ADK_TARGET_BOARD_BCM28XX
 	default "5.16" if ADK_TARGET_CPU_ARC_ARC32 || ADK_TARGET_CPU_ARC_ARC64
 	default "5.10.110" if ADK_TARGET_SYSTEM_ROCKPI4_PLUS
 	default "6.6.32" if ADK_TARGET_SYSTEM_BEAGLEBONE_BLACK

target/linux/patches/dd03775ac7638ec56fb6aec35e7932755f282f60/defconfig.patch

@@ -0,0 +1,38 @@
+diff -Nur linux-dd03775ac7638ec56fb6aec35e7932755f282f60.orig/arch/arm64/configs/bcm2711_defconfig linux-dd03775ac7638ec56fb6aec35e7932755f282f60/arch/arm64/configs/bcm2711_defconfig
+--- linux-dd03775ac7638ec56fb6aec35e7932755f282f60.orig/arch/arm64/configs/bcm2711_defconfig	2025-04-01 05:59:45.000000000 +0200
++++ linux-dd03775ac7638ec56fb6aec35e7932755f282f60/arch/arm64/configs/bcm2711_defconfig	2025-04-01 18:37:38.341421368 +0200
+@@ -1,4 +1,4 @@
+-CONFIG_LOCALVERSION="-v8"
++CONFIG_LOCALVERSION=""
+ # CONFIG_LOCALVERSION_AUTO is not set
+ CONFIG_SYSVIPC=y
+ CONFIG_POSIX_MQUEUE=y
+@@ -78,8 +78,7 @@
+ CONFIG_MODULE_UNLOAD=y
+ CONFIG_MODVERSIONS=y
+ CONFIG_MODULE_SRCVERSION_ALL=y
+-CONFIG_MODULE_COMPRESS=y
+-CONFIG_MODULE_COMPRESS_XZ=y
++# CONFIG_MODULE_COMPRESS is not set
+ CONFIG_BLK_DEV_THROTTLING=y
+ CONFIG_PARTITION_ADVANCED=y
+ CONFIG_MAC_PARTITION=y
+diff -Nur linux-dd03775ac7638ec56fb6aec35e7932755f282f60.orig/arch/arm64/configs/bcm2712_defconfig linux-dd03775ac7638ec56fb6aec35e7932755f282f60/arch/arm64/configs/bcm2712_defconfig
+--- linux-dd03775ac7638ec56fb6aec35e7932755f282f60.orig/arch/arm64/configs/bcm2712_defconfig	2025-04-01 05:59:45.000000000 +0200
++++ linux-dd03775ac7638ec56fb6aec35e7932755f282f60/arch/arm64/configs/bcm2712_defconfig	2025-04-01 18:37:14.313420820 +0200
+@@ -1,4 +1,4 @@
+-CONFIG_LOCALVERSION="-v8-16k"
++CONFIG_LOCALVERSION=""
+ # CONFIG_LOCALVERSION_AUTO is not set
+ CONFIG_SYSVIPC=y
+ CONFIG_POSIX_MQUEUE=y
+@@ -81,8 +81,7 @@
+ CONFIG_MODULE_UNLOAD=y
+ CONFIG_MODVERSIONS=y
+ CONFIG_MODULE_SRCVERSION_ALL=y
+-CONFIG_MODULE_COMPRESS=y
+-CONFIG_MODULE_COMPRESS_XZ=y
++# CONFIG_MODULE_COMPRESS is not set
+ CONFIG_BLK_DEV_THROTTLING=y
+ CONFIG_PARTITION_ADVANCED=y
+ CONFIG_MAC_PARTITION=y