imx6/kodi: reinstall SIGTERM signal handler after GUI is created

seems imx-gpu-viv-5.0.11.p7.4-hfp overwrites signal handler
thats why we set it again after GUI is already created
without this patch kodi exits immediately on any received signal
and settings are not saved

this pr is send only to libreelec-8.0 branch
for master I will investigate for some other solutions (like
downgrading or upgrading galcore for a few versions)

projects/imx6/patches/kodi/kodi-200-handle-SIGTERM-after-vivante.patch

@@ -0,0 +1,45 @@
+From fe8e608491e9fef6d8425daa83057ecf91c312fa Mon Sep 17 00:00:00 2001
+From: Peter Vicman <peter.vicman@gmail.com>
+Date: Tue, 14 May 2017 17:48:58 +0200
+Subject: [PATCH] set SIGTERM signal handler
+
+seems imx-gpu-viv-5.0.11.p7.4-hfp overwrites signal handler
+thats why we set it again after GUI is already created
+---
+ xbmc/platform/xbmc.cpp | 13 +++++++++++++
+ 1 file changed, 13 insertions(+)
+
+diff --git a/xbmc/platform/xbmc.cpp b/xbmc/platform/xbmc.cpp
+index 34e5ea6..e280021 100644
+--- a/xbmc/platform/xbmc.cpp
++++ b/xbmc/platform/xbmc.cpp
+@@ -32,6 +32,13 @@
+ 
+ #include "platform/MessagePrinter.h"
+ 
++#ifdef TARGET_POSIX
++#include <sys/resource.h>
++#include <signal.h>
++#include "utils/log.h"
++
++extern void xbmc_term_handler(int signum);
++#endif
+ 
+ extern "C" int XBMC_Run(bool renderGUI, CFileItemList &playlist)
+ {
+@@ -84,6 +91,12 @@ extern "C" int XBMC_Run(bool renderGUI, CFileItemList &playlist)
+   }
+ #endif
+ 
++  // SIGTERM handler after loading vivante libraries which ovewrites our one
++  struct sigaction action;
++  memset(&action, 0, sizeof(struct sigaction));
++  action.sa_handler = xbmc_term_handler;
++  sigaction(SIGTERM, &action, NULL);
++  
+   try
+   {
+     status = g_application.Run(playlist);
+-- 
+2.7.4
+