linux: bump to version 3.13

Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

linux/Config.in

@@ -21,7 +21,7 @@ choice
 	prompt "Kernel version"
 
 config BR2_LINUX_KERNEL_LATEST_VERSION
-	bool "3.12.8"
+	bool "3.13"
 
 config BR2_LINUX_KERNEL_SAME_AS_HEADERS
 	bool "Same as toolchain kernel headers"
@@ -87,7 +87,7 @@ endif
 
 config BR2_LINUX_KERNEL_VERSION
 	string
-	default "3.12.8" if BR2_LINUX_KERNEL_LATEST_VERSION
+	default "3.13" if BR2_LINUX_KERNEL_LATEST_VERSION
 	default BR2_DEFAULT_KERNEL_HEADERS if BR2_LINUX_KERNEL_SAME_AS_HEADERS
 	default BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE \
 		if BR2_LINUX_KERNEL_CUSTOM_VERSION