configs/mx6: Bump to kernel 4.8.11

Kernel 4.8.11 brings commit 5f95e68daae397 ("clk: imx: fix integer overflow
in AV PLL round rate"), which fixes a PLL calculation bug, so bump to this
version.

Signed-off-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

configs/imx6ulpico_defconfig

@@ -17,7 +17,7 @@ BR2_GLOBAL_PATCH_DIR="board/technexion/imx6ulpico/patches"
 # kernel
 BR2_LINUX_KERNEL=y
 BR2_LINUX_KERNEL_CUSTOM_VERSION=y
-BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="4.8"
+BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="4.8.11"
 BR2_LINUX_KERNEL_DEFCONFIG="imx_v6_v7"
 BR2_LINUX_KERNEL_CONFIG_FRAGMENT_FILES="board/technexion/imx6ulpico/linux.fragment"
 BR2_LINUX_KERNEL_DTS_SUPPORT=y

configs/mx6udoo_defconfig

@@ -15,7 +15,7 @@ BR2_TARGET_UBOOT_SPL=y
 BR2_TARGET_UBOOT_SPL_NAME="SPL"
 BR2_LINUX_KERNEL=y
 BR2_LINUX_KERNEL_CUSTOM_VERSION=y
-BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="4.8"
+BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="4.8.11"
 BR2_LINUX_KERNEL_DEFCONFIG="imx_v6_v7"
 BR2_LINUX_KERNEL_CONFIG_FRAGMENT_FILES="board/udoo/linux.fragment"
 BR2_LINUX_KERNEL_DTS_SUPPORT=y