linux-headers: bump 3.{12,18}.x series

Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/linux-headers/Config.in.host

@@ -194,12 +194,12 @@ config BR2_DEFAULT_KERNEL_HEADERS
 	default "3.4.106"	if BR2_KERNEL_HEADERS_3_4
 	default "3.10.73"	if BR2_KERNEL_HEADERS_3_10
 	default "3.11.10"	if BR2_KERNEL_HEADERS_3_11
-	default "3.12.39"	if BR2_KERNEL_HEADERS_3_12
+	default "3.12.40"	if BR2_KERNEL_HEADERS_3_12
 	default "3.13.11"	if BR2_KERNEL_HEADERS_3_13
 	default "3.14.37"	if BR2_KERNEL_HEADERS_3_14
 	default "3.15.10"	if BR2_KERNEL_HEADERS_3_15
 	default "3.16.7"	if BR2_KERNEL_HEADERS_3_16
 	default "3.17.8"	if BR2_KERNEL_HEADERS_3_17
-	default "3.18.10"	if BR2_KERNEL_HEADERS_3_18
+	default "3.18.11"	if BR2_KERNEL_HEADERS_3_18
 	default "3.19.3"	if BR2_KERNEL_HEADERS_3_19
 	default BR2_DEFAULT_KERNEL_VERSION if BR2_KERNEL_HEADERS_VERSION