Updating the kernel to 5.15

Author: Divya-563

configs/raspberrypi3_wpe_ml_defconfig

@@ -16,9 +16,9 @@ BR2_ROOTFS_POST_SCRIPT_ARGS="--rpi-wifi --overclock-pi3 --tvmode-720 --gpu_mem_1
 BR2_LINUX_KERNEL=y
 BR2_LINUX_KERNEL_CUSTOM_GIT=y
 BR2_LINUX_KERNEL_CUSTOM_REPO_URL="https://github.com/raspberrypi/linux"
-BR2_LINUX_KERNEL_CUSTOM_REPO_VERSION="rpi-5.10.y"
+BR2_LINUX_KERNEL_CUSTOM_REPO_VERSION="rpi-5.15.y"
 BR2_LINUX_KERNEL_USE_CUSTOM_CONFIG=y
-BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE="board/raspberrypi/rpi23-linux-5.10.config"
+BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE="board/raspberrypi/rpi34-linux-5.15.config"
 BR2_LINUX_KERNEL_LZ4=y
 BR2_LINUX_KERNEL_DTS_SUPPORT=y
 BR2_LINUX_KERNEL_INTREE_DTS_NAME="bcm2710-rpi-3-b bcm2710-rpi-3-b-plus bcm2710-rpi-cm3"
@@ -60,6 +60,7 @@ BR2_PACKAGE_RPI_WIFI_FIRMWARE=y
 BR2_PACKAGE_RNG_TOOLS=y
 BR2_PACKAGE_CA_CERTIFICATES=y
 BR2_PACKAGE_WPEFRAMEWORK_MESSAGING=y
+BR2_PACKAGE_WPEFRAMEWORK_GROUP=""
 BR2_PACKAGE_WPEFRAMEWORK_BLUETOOTHREMOTECONTROL=y
 BR2_PACKAGE_WPEFRAMEWORK_CDMI_CLEARKEY=y
 BR2_PACKAGE_WPEFRAMEWORK_CDMI_PLAYREADY_MODULE=y
@@ -101,5 +102,6 @@ BR2_PACKAGE_RDKSPLASHSCREEN=y
 BR2_PACKAGE_RDKSPLASHSCREEN_OPERATOR="metrological"
 BR2_PACKAGE_UTIL_LINUX_LIBMOUNT=y
 BR2_PACKAGE_HOST_DOSFSTOOLS=y
+BR2_PACKAGE_HOST_E2FSPROGS=y
 BR2_PACKAGE_HOST_GENIMAGE=y
 BR2_PACKAGE_HOST_MTOOLS=y