linux-headers: bump 4.{4, 9, 12}.x series

[Peter: drop 4.12.x bump]
Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
(cherry picked from commit 10b1273264ea6a61fe29a8767f2721144f23117f)
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 "4.1.43"	if BR2_KERNEL_HEADERS_4_1
-	default "4.4.84"	if BR2_KERNEL_HEADERS_4_4
+	default "4.4.85"	if BR2_KERNEL_HEADERS_4_4
 	default "4.8.17"	if BR2_KERNEL_HEADERS_4_8
-	default "4.9.45"	if BR2_KERNEL_HEADERS_4_9
+	default "4.9.46"	if BR2_KERNEL_HEADERS_4_9
 	default BR2_DEFAULT_KERNEL_VERSION if BR2_KERNEL_HEADERS_VERSION