configs/imx7d-sdb: bump the kernel version

Bump the kernel version to 6.6.21.

Also pass the nxp/imx/ path due to the devicetree reorganization
in kernel 6.6.

Signed-off-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Arnout Vandecappelle <arnout@mind.be>

configs/imx7d-sdb_defconfig

@@ -3,8 +3,8 @@ BR2_arm=y
 BR2_cortex_a7=y
 BR2_ARM_FPU_NEON_VFPV4=y
 
-# Linux headers same as kernel, a 6.1 series
-BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_6_1=y
+# Linux headers same as kernel, a 6.6 series
+BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_6_6=y
 
 # system
 BR2_TARGET_GENERIC_GETTY_PORT="ttymxc0"
@@ -12,10 +12,10 @@ BR2_TARGET_GENERIC_GETTY_PORT="ttymxc0"
 # Kernel
 BR2_LINUX_KERNEL=y
 BR2_LINUX_KERNEL_CUSTOM_VERSION=y
-BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="6.1.34"
+BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="6.6.21"
 BR2_LINUX_KERNEL_DEFCONFIG="imx_v6_v7"
 BR2_LINUX_KERNEL_DTS_SUPPORT=y
-BR2_LINUX_KERNEL_INTREE_DTS_NAME="imx7d-sdb"
+BR2_LINUX_KERNEL_INTREE_DTS_NAME="nxp/imx/imx7d-sdb"
 BR2_LINUX_KERNEL_NEEDS_HOST_OPENSSL=y
 BR2_LINUX_KERNEL_INSTALL_TARGET=y