nitrogen6x_defconfig: bump kernel version

To boundary-L3.0.35_12.09.01_GA branch.

See http://boundarydevices.com/october-freescale-releases-for-i-mx6/
for details.

Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>

configs/nitrogen6x_defconfig

@@ -19,6 +19,6 @@ BR2_TARGET_UBOOT_CUSTOM_TARBALL_LOCATION="http://github.com/boundarydevices/u-bo
 # kernel
 BR2_LINUX_KERNEL=y
 BR2_LINUX_KERNEL_CUSTOM_TARBALL=y
-BR2_LINUX_KERNEL_CUSTOM_TARBALL_LOCATION="http://github.com/boundarydevices/linux-imx6/tarball/cb1a536/linux-imx6-cb1a536.tar.gz"
+BR2_LINUX_KERNEL_CUSTOM_TARBALL_LOCATION="http://github.com/boundarydevices/linux-imx6/tarball/5f84e92/linux-imx6-5f84e92.tar.gz"
 BR2_LINUX_KERNEL_DEFCONFIG="nitrogen6x"
 BR2_LINUX_KERNEL_INSTALL_TARGET=y