[Buildroot] [git commit] raspberrypi0_defconfig: bump to kernel version 4.4.21

[Thomas Petazzoni]

commit: https://git.buildroot.net/buildroot/commit/?id=7d68a12131d3edb97cd9cae9bb170724550789ba
branch: https://git.buildroot.net/buildroot/commit/?id=refs/heads/master

Signed-off-by: Peter Seiderer <ps.report at gmx.net>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni at free-electrons.com>
---
 configs/raspberrypi0_defconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/configs/raspberrypi0_defconfig b/configs/raspberrypi0_defconfig
index 87b1108..1ad56fe 100644
--- a/configs/raspberrypi0_defconfig
+++ b/configs/raspberrypi0_defconfig
@@ -10,7 +10,7 @@ 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="26f3b72a9c049be10e6af196252283e1f6ab9d1f"
+BR2_LINUX_KERNEL_CUSTOM_REPO_VERSION="9669a50a3a8e4f33b4fe138277bc4407e1eab9b2"
 BR2_LINUX_KERNEL_DEFCONFIG="bcmrpi"
 
 # Build the DTBs for A/B from the kernel sources: the zero is the same