linux-headers: bump 4.{4, 9, 14, 18}.x series

[Peter: drop 4.18.x change]
Signed-off-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
(cherry picked from commit ebe0636db8119870f2cb6a48186bb14c5f20db0c)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/linux-headers/Config.in.host

@@ -250,12 +250,12 @@ config BR2_DEFAULT_KERNEL_HEADERS
 	string
 	default "3.2.102"	if BR2_KERNEL_HEADERS_3_2
 	default "4.1.52"	if BR2_KERNEL_HEADERS_4_1
-	default "4.4.155"	if BR2_KERNEL_HEADERS_4_4
-	default "4.9.126"	if BR2_KERNEL_HEADERS_4_9
+	default "4.4.156"	if BR2_KERNEL_HEADERS_4_4
+	default "4.9.127"	if BR2_KERNEL_HEADERS_4_9
 	default "4.10.17"	if BR2_KERNEL_HEADERS_4_10
 	default "4.11.12"	if BR2_KERNEL_HEADERS_4_11
 	default "4.12.14"	if BR2_KERNEL_HEADERS_4_12
 	default "4.13.16"	if BR2_KERNEL_HEADERS_4_13
-	default "4.14.69"	if BR2_KERNEL_HEADERS_4_14
+	default "4.14.70"	if BR2_KERNEL_HEADERS_4_14
 	default "4.15.18"	if BR2_KERNEL_HEADERS_4_15
 	default BR2_DEFAULT_KERNEL_VERSION if BR2_KERNEL_HEADERS_VERSION