package/iwd: fix build with uclibc

This patch is needed to fix a build failure with iwd 1.9.0 and uclibc

Fixes:
 - http://autobuild.buildroot.org/results/c7a0096a269bfc52bd8e23d453d36d5bfb61441d

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Reviewed-by: Peter Seiderer <ps.report@gmx.net>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/iwd/0001-src-ap.c-fix-build-with-uclibc.patch

@@ -0,0 +1,36 @@
+From 377df79e83e2127a087e1aa5ba6173e195e50933 Mon Sep 17 00:00:00 2001
+From: Fabrice Fontaine <fontaine.fabrice@gmail.com>
+Date: Thu, 10 Sep 2020 07:47:14 +0200
+Subject: [PATCH] src/ap.c: fix build with uclibc
+
+explicit_bzero is used in src/ap.c since commit
+d55e00b31d7bccdbb2ea1cdeb0a749df77a51e47 but src/missing.h is not
+included, as a result build with uclibc fails on:
+
+/srv/storage/autobuild/run/instance-1/output-1/host/lib/gcc/xtensa-buildroot-linux-uclibc/9.3.0/../../../../xtensa-buildroot-linux-uclibc/bin/ld: src/ap.o: in function `ap_probe_req_cb':
+ap.c:(.text+0x23d8): undefined reference to `explicit_bzero'
+
+Fixes:
+ - http://autobuild.buildroot.org/results/c7a0096a269bfc52bd8e23d453d36d5bfb61441d
+
+Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
+[Upstream: https://git.kernel.org/pub/scm/network/wireless/iwd.git/commit/?id=0a6de7932a61ec82aca4f78f71dab7247c897860]
+---
+ src/ap.c | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/src/ap.c b/src/ap.c
+index c972cfcb..ac705c31 100644
+--- a/src/ap.c
++++ b/src/ap.c
+@@ -31,6 +31,7 @@
+ 
+ #include "linux/nl80211.h"
+ 
++#include "src/missing.h"
+ #include "src/iwd.h"
+ #include "src/module.h"
+ #include "src/scan.h"
+-- 
+2.28.0
+