uboot: bump version to 2015.10

Keep the 2015.07 patch so things still work for people using 2015.07.

Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

boot/uboot/Config.in

@@ -38,7 +38,7 @@ choice
 	  Select the specific U-Boot version you want to use
 
 config BR2_TARGET_UBOOT_LATEST_VERSION
-	bool "2015.07"
+	bool "2015.10"
 
 config BR2_TARGET_UBOOT_CUSTOM_VERSION
 	bool "Custom version"
@@ -83,7 +83,7 @@ endif
 
 config BR2_TARGET_UBOOT_VERSION
 	string
-	default "2015.07"	if BR2_TARGET_UBOOT_LATEST_VERSION
+	default "2015.10"	if BR2_TARGET_UBOOT_LATEST_VERSION
 	default BR2_TARGET_UBOOT_CUSTOM_VERSION_VALUE \
 		if BR2_TARGET_UBOOT_CUSTOM_VERSION
 	default "custom"	if BR2_TARGET_UBOOT_CUSTOM_TARBALL