LIRC: don't choke on EINTR

(cherry picked from commit cf25b55a45ec72aa89ce7089124d860a6e9b2081)

modules/control/lirc.c

@@ -154,7 +154,10 @@ static void Run( intf_thread_t *p_intf )
         /* Wait for data */
         struct pollfd ufd = { .fd = p_sys->i_fd, .events = POLLIN, .revents = 0 };
         if( poll( &ufd, 1, -1 ) == -1 )
-            break;
+            if( errno == EINTR )
+                continue;
+            else
+                break;
 
         /* Process */
         int canc = vlc_savecancel();