linux-headers: bump 3.18.x and 4.1.x series

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

package/linux-headers/Config.in.host

@@ -218,10 +218,10 @@ config BR2_DEFAULT_KERNEL_HEADERS
 	default "3.4.113"	if BR2_KERNEL_HEADERS_3_4
 	default "3.10.104"	if BR2_KERNEL_HEADERS_3_10
 	default "3.12.69"	if BR2_KERNEL_HEADERS_3_12
-	default "3.18.45"	if BR2_KERNEL_HEADERS_3_18
+	default "3.18.46"	if BR2_KERNEL_HEADERS_3_18
 	default "3.19.8"	if BR2_KERNEL_HEADERS_3_19
 	default "4.0.9"		if BR2_KERNEL_HEADERS_4_0
-	default "4.1.36"	if BR2_KERNEL_HEADERS_4_1
+	default "4.1.37"	if BR2_KERNEL_HEADERS_4_1
 	default "4.4.39"	if BR2_KERNEL_HEADERS_4_4
 	default "4.8.15"	if BR2_KERNEL_HEADERS_4_8
 	default "4.9"		if BR2_KERNEL_HEADERS_4_9