linux-headers: bump 4.{4, 9, 14, 15}.x series

[Peter: drop 4.14.x / 4.15.x bump]
Signed-off-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
(cherry picked from commit d9534c816383ac45e75ae042b7c668406d9e8b1f)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/linux-headers/Config.in.host

@@ -222,7 +222,7 @@ config BR2_DEFAULT_KERNEL_HEADERS
 	default "3.19.8"	if BR2_KERNEL_HEADERS_3_19
 	default "4.0.9"		if BR2_KERNEL_HEADERS_4_0
 	default "4.1.50"	if BR2_KERNEL_HEADERS_4_1
-	default "4.4.122"	if BR2_KERNEL_HEADERS_4_4
+	default "4.4.124"	if BR2_KERNEL_HEADERS_4_4
 	default "4.8.17"	if BR2_KERNEL_HEADERS_4_8
-	default "4.9.88"	if BR2_KERNEL_HEADERS_4_9
+	default "4.9.90"	if BR2_KERNEL_HEADERS_4_9
 	default BR2_DEFAULT_KERNEL_VERSION if BR2_KERNEL_HEADERS_VERSION