Bump Linux Kernel to v6.12

Linux Kernel v6.7 propose a solution to resolve sound stutter effect.
Therefore, upgrade Linux Kernel version to v6.12 as it is an LTS
version with the proposed solution included.

Also, this commit disables the following
RISC-V platform specific settings in Linux Kernel compilation configuration:

1. Zawrs extension support for more efficient busy waiting.
2. Zba extension support for bit manipulation instructions.
3. Zbb extension support for bit manipulation instructions.
4. Zbc extension support for carry-less multiplication instructions.
5. Zicbom extension support for non-coherent DMA operation.
6. Zicboz extension support for faster zeroing of memory.
7. Vendor extensions support (including Andes).

Author: Cuda-Chen

configs/linux.config

@@ -1,11 +1,11 @@
-CONFIG_CC_VERSION_TEXT="riscv32-buildroot-linux-gnu-gcc.br_real (Buildroot 2023.05.1) 12.3.0"
+CONFIG_CC_VERSION_TEXT="riscv32-buildroot-linux-gnu-gcc.br_real (Buildroot 2024.11.1) 14.2.0"
 CONFIG_CC_IS_GCC=y
-CONFIG_GCC_VERSION=120300
+CONFIG_GCC_VERSION=140200
 CONFIG_CLANG_VERSION=0
 CONFIG_AS_IS_GNU=y
-CONFIG_AS_VERSION=23900
+CONFIG_AS_VERSION=24200
 CONFIG_LD_IS_BFD=y
-CONFIG_LD_VERSION=23900
+CONFIG_LD_VERSION=24200
 CONFIG_LLD_VERSION=0
 CONFIG_CC_CAN_LINK=y
 CONFIG_CC_CAN_LINK_STATIC=y
@@ -227,6 +227,10 @@ CONFIG_MODULE_SECTIONS=y
 CONFIG_SMP=y
 CONFIG_TUNE_GENERIC=y
 # CONFIG_RISCV_ISA_C is not set
+# CONFIG_RISCV_ISA_ZAWRS is not set
+# CONFIG_RISCV_ISA_ZBA is not set
+# CONFIG_RISCV_ISA_ZBB is not set
+# CONFIG_RISCV_ISA_ZBC is not set
 CONFIG_TOOLCHAIN_HAS_ZICBOM=y
 # CONFIG_RISCV_ISA_ZICBOM is not set
 CONFIG_TOOLCHAIN_HAS_ZIHINTPAUSE=y

scripts/build-image.sh

@@ -37,7 +37,7 @@ function do_buildroot
 
 function do_linux
 {
-    ASSERT git clone https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git -b linux-6.1.y --depth=1
+    ASSERT git clone https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git -b linux-6.12.y --depth=1
     cp -f configs/linux.config linux/.config
     export PATH="$PWD/buildroot/output/host/bin:$PATH"
     export CROSS_COMPILE=riscv32-buildroot-linux-gnu-