configs/globalscale_espressobin: Bump linux to v6.12.34

Bump from v5.15.1 to the latest LTS, v6.12.34.

Signed-off-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Reviewed-by: Joachim Wiberg <troglobit@gmail.com>
[Julien: reword commit title]
Signed-off-by: Julien Olivain <ju.o@free.fr>

configs/globalscale_espressobin_defconfig

@@ -1,12 +1,12 @@
 BR2_aarch64=y
 BR2_ARM_FPU_VFPV4=y
-BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_5_15=y
+BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_6_12=y
 BR2_TARGET_GENERIC_ISSUE="Welcome to Buildroot for the Marvell ESPRESSObin"
 BR2_ROOTFS_POST_IMAGE_SCRIPT="support/scripts/genimage.sh"
 BR2_ROOTFS_POST_SCRIPT_ARGS="-c board/globalscale/espressobin/genimage.cfg"
 BR2_LINUX_KERNEL=y
 BR2_LINUX_KERNEL_CUSTOM_VERSION=y
-BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="5.15.1"
+BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="6.12.34"
 BR2_LINUX_KERNEL_USE_ARCH_DEFAULT_CONFIG=y
 BR2_LINUX_KERNEL_CONFIG_FRAGMENT_FILES="board/globalscale/espressobin/linux-extras.config"
 BR2_LINUX_KERNEL_DTS_SUPPORT=y