Upgrade kernel to 4.4.9 and include wifi

The kernel update has been imminent for a while, but the desire to
support a variety of wifi adapters necessitated the update. The 4.4.x
series is the latest long term support kernel for the BBB. This change
also enables the real-time scheduler.

Author: fhunleth

nerves_defconfig

@@ -23,13 +23,14 @@ BR2_ROOTFS_POST_BUILD_SCRIPT="${NERVES_SYSTEM}/board/bbb/post-build.sh"
 BR2_ROOTFS_POST_IMAGE_SCRIPT="${NERVES_SYSTEM}/board/bbb/post-createfs.sh"
 BR2_LINUX_KERNEL=y
 BR2_LINUX_KERNEL_CUSTOM_VERSION=y
-BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="3.8.13"
-BR2_LINUX_KERNEL_PATCH="${NERVES_SYSTEM}/board/bbb/rcn-linux-kernel-3.8.patch ${NERVES_SYSTEM}/board/bbb/linux-3.8"
+BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="4.4.9"
+BR2_LINUX_KERNEL_PATCH="${NERVES_SYSTEM}/board/bbb/rcn-linux-4.4.9-ti.patch"
 BR2_LINUX_KERNEL_USE_CUSTOM_CONFIG=y
-BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE="${NERVES_SYSTEM}/board/bbb/linux-3.8.defconfig"
+BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE="${NERVES_SYSTEM}/board/bbb/linux-4.4.9.defconfig"
 BR2_LINUX_KERNEL_ZIMAGE=y
 BR2_LINUX_KERNEL_DTS_SUPPORT=y
 BR2_LINUX_KERNEL_INTREE_DTS_NAME="am335x-boneblack"
+BR2_LINUX_KERNEL_EXT_KERNEL_WIRELESS_REGDB=y
 BR2_PACKAGE_BUSYBOX_CONFIG="${NERVES_DEFCONFIG_DIR}/bbb-busybox.config"
 BR2_PACKAGE_E2FSPROGS=y
 # BR2_PACKAGE_E2FSPROGS_BADBLOCKS is not set
@@ -46,12 +47,15 @@ BR2_PACKAGE_E2FSPROGS=y
 # BR2_PACKAGE_E2FSPROGS_MKLOSTFOUND is not set
 # BR2_PACKAGE_E2FSPROGS_TUNE2FS is not set
 # BR2_PACKAGE_E2FSPROGS_UUIDGEN is not set
+BR2_PACKAGE_LINUX_FIRMWARE=y
+BR2_PACKAGE_LINUX_FIRMWARE_RALINK_RT2XX=y
+BR2_PACKAGE_LINUX_FIRMWARE_RTL_87XX=y
 BR2_PACKAGE_ERLANG_SMP=y
 BR2_PACKAGE_OPENSSL=y
 BR2_PACKAGE_LIBMNL=y
 BR2_PACKAGE_NCURSES=y
-BR2_PACKAGE_UTIL_LINUX=y
-BR2_PACKAGE_UTIL_LINUX_LIBBLKID=y
+BR2_PACKAGE_WPA_SUPPLICANT=y
+BR2_PACKAGE_WPA_SUPPLICANT_DEBUG_SYSLOG=y
 BR2_TARGET_ROOTFS_SQUASHFS=y
 # BR2_TARGET_ROOTFS_TAR is not set
 BR2_TARGET_UBOOT=y
@@ -68,7 +72,6 @@ BR2_PACKAGE_BOARDID=y
 BR2_PACKAGE_ERLANG_HISTORY=y
 BR2_PACKAGE_FWUP=y
 BR2_PACKAGE_NERVES_CONFIG=y
-BR2_PACKAGE_NERVES_CONFIG_PORT="ttyO0"
 BR2_PACKAGE_NERVES_CONFIG_ELIXIR=y
 BR2_PACKAGE_NERVES_CONFIG_APPS="crypto"
 BR2_PACKAGE_NERVES_CONFIG_EXTRA_MOUNTS="/dev/mmcblk0p3:/root:vfat::"