linux-headers: bump 4.{9,11,12}.x series

[Drop 4.12.x change]
Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
(cherry picked from commit 8e95c2e9ca72d39823a0ef72c69590da0ca8b140)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/linux-headers/Config.in.host

@@ -228,7 +228,7 @@ config BR2_DEFAULT_KERNEL_HEADERS
 	default "3.12.74"	if BR2_KERNEL_HEADERS_3_12
 	default "4.1.42"	if BR2_KERNEL_HEADERS_4_1
 	default "4.4.76"	if BR2_KERNEL_HEADERS_4_4
-	default "4.9.36"	if BR2_KERNEL_HEADERS_4_9
+	default "4.9.37"	if BR2_KERNEL_HEADERS_4_9
 	default "4.10.17"	if BR2_KERNEL_HEADERS_4_10
-	default "4.11.9"	if BR2_KERNEL_HEADERS_4_11
+	default "4.11.10"	if BR2_KERNEL_HEADERS_4_11
 	default BR2_DEFAULT_KERNEL_VERSION if BR2_KERNEL_HEADERS_VERSION