raspberrypi_defconfig: bump kernel version to 4.4.43

Signed-off-by: Peter Seiderer <ps.report@gmx.net>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

configs/raspberrypi_defconfig

@@ -12,7 +12,7 @@ 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="c6d86f7aa554854b04614ebb4d394766081fb41f"
+BR2_LINUX_KERNEL_CUSTOM_REPO_VERSION="1ebe8d4a4c96cd6a90805c74233a468854960f67"
 BR2_LINUX_KERNEL_DEFCONFIG="bcmrpi"
 
 # Build the DTBs for A/B, A+/B+ and compute module from the kernel sources