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

Signed-off-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
(cherry picked from commit 78117a553b4734ab810e218d8e3355f12d6889ee)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/linux-headers/Config.in.host

@@ -250,8 +250,8 @@ 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 "4.4.136"	if BR2_KERNEL_HEADERS_4_4
-	default "4.9.107"	if BR2_KERNEL_HEADERS_4_9
+	default "4.4.137"	if BR2_KERNEL_HEADERS_4_4
+	default "4.9.108"	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