linux: bump default to version 4.12

Signed-off-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

linux/Config.in

@@ -26,7 +26,7 @@ choice
 	prompt "Kernel version"
 
 config BR2_LINUX_KERNEL_LATEST_VERSION
-	bool "Latest version (4.11.9)"
+	bool "Latest version (4.12)"
 
 config BR2_LINUX_KERNEL_LATEST_CIP_VERSION
 	bool "Latest CIP SLTS version (v4.4.55-cip3)"
@@ -116,7 +116,7 @@ endif
 
 config BR2_LINUX_KERNEL_VERSION
 	string
-	default "4.11.9" if BR2_LINUX_KERNEL_LATEST_VERSION
+	default "4.12" if BR2_LINUX_KERNEL_LATEST_VERSION
 	default "v4.4.55-cip3" if BR2_LINUX_KERNEL_LATEST_CIP_VERSION
 	default BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE \
 		if BR2_LINUX_KERNEL_CUSTOM_VERSION