linux-headers: bump 4.4.x series

Signed-off-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/linux-headers/Config.in.host

@@ -227,7 +227,7 @@ config BR2_DEFAULT_KERNEL_HEADERS
 	default "3.10.106"	if BR2_KERNEL_HEADERS_3_10
 	default "3.12.74"	if BR2_KERNEL_HEADERS_3_12
 	default "4.1.41"	if BR2_KERNEL_HEADERS_4_1
-	default "4.4.73"	if BR2_KERNEL_HEADERS_4_4
+	default "4.4.74"	if BR2_KERNEL_HEADERS_4_4
 	default "4.9.34"	if BR2_KERNEL_HEADERS_4_9
 	default "4.10.17"	if BR2_KERNEL_HEADERS_4_10
 	default "4.11.7"	if BR2_KERNEL_HEADERS_4_11