Fixed connection definition for non-SELinux builds

This patch fixes the access of variable "con" in two files where the
variable was declared only on SELinux builds and thus the build failed
without SELinux. It's a rather nasty fix but helps fix the build
quickly and without any major changes to the code.

src/lxc/lxc_container.c

@@ -449,6 +449,8 @@ static int lxcContainerMountBasicFS(const char *srcprefix, bool pivotRoot)
     char *opts = NULL;
 #if HAVE_SELINUX
     security_context_t con;
+#else
+    bool con = false;
 #endif
 
     VIR_DEBUG("Mounting basic filesystems %s pivotRoot=%d", NULLSTR(srcprefix), pivotRoot);

src/lxc/lxc_controller.c

@@ -1438,6 +1438,8 @@ lxcControllerRun(virDomainDefPtr def,
     if (root) {
 #if HAVE_SELINUX
         security_context_t con;
+#else
+        bool con = false;
 #endif
         char *opts;
         VIR_DEBUG("Setting up private /dev/pts");