backports: Include missing header file for mt76

MODULE_PARM_DESC() is not defined without this header file on some
kernel versions.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
diff --git a/patches/0013-fix-makefile-includes/mt76.patch b/patches/0013-fix-makefile-includes/mt76.patch
new file mode 100644
index 0000000..b7628ff
--- /dev/null
+++ b/patches/0013-fix-makefile-includes/mt76.patch
@@ -0,0 +1,12 @@
+additional include needed for kernel 4.2, 4.11, 4.12 and 4.13
+
+--- a/drivers/net/wireless/mediatek/mt76/mt7615/mcu.c
++++ b/drivers/net/wireless/mediatek/mt76/mt7615/mcu.c
+@@ -6,6 +6,7 @@
+  */
+ 
+ #include <linux/firmware.h>
++#include <linux/module.h>
+ #include "mt7615.h"
+ #include "mcu.h"
+ #include "mac.h"