configs/raspberrypi: bump kernel version

Bump to linux-3.10.27, plus a slew of RPi-specific fixes.

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

configs/raspberrypi_defconfig

@@ -17,7 +17,7 @@ BR2_DEFAULT_KERNEL_VERSION="3.10.25"
 BR2_LINUX_KERNEL=y
 BR2_LINUX_KERNEL_CUSTOM_GIT=y
 BR2_LINUX_KERNEL_CUSTOM_REPO_URL="git://github.com/raspberrypi/linux.git"
-BR2_LINUX_KERNEL_CUSTOM_REPO_VERSION="75d03120bc36b1cc3166973b8edc11f033ab7c0d"
+BR2_LINUX_KERNEL_CUSTOM_REPO_VERSION="ab2ed0dbf37e8d397e60f37621629082da75cd58"
 BR2_LINUX_KERNEL_USE_DEFCONFIG=y
 BR2_LINUX_KERNEL_DEFCONFIG="bcmrpi_quick"
 BR2_LINUX_KERNEL_ZIMAGE=y