raspberrypi_defconfig: bump to kernel version 4.4.7

Signed-off-by: Peter Seiderer <ps.report@gmx.net>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

configs/raspberrypi_defconfig

@@ -4,15 +4,15 @@ BR2_ARM_EABIHF=y
 
 BR2_SYSTEM_DHCP="eth0"
 
-# Linux headers same as kernel, a 4.1 series
-BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_4_1=y
+# Linux headers same as kernel, a 4.4 series
+BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_4_4=y
 
 BR2_TOOLCHAIN_BUILDROOT_CXX=y
 
 BR2_LINUX_KERNEL=y
 BR2_LINUX_KERNEL_CUSTOM_GIT=y
 BR2_LINUX_KERNEL_CUSTOM_REPO_URL="https://github.com/raspberrypi/linux.git"
-BR2_LINUX_KERNEL_CUSTOM_REPO_VERSION="d33d0293e245badc4ca6ede3984d8bb8ea63cb1a"
+BR2_LINUX_KERNEL_CUSTOM_REPO_VERSION="3de232825c9ba5989522b8691eb6ac5df6619458"
 BR2_LINUX_KERNEL_DEFCONFIG="bcmrpi"
 
 # Build the DTBs for A/B, A+/B+ and compute module from the kernel sources