libweston: Use struct timespec for key events

Change code related to key events to use struct timespec to represent
time.

This commit is part of a larger effort to transition the Weston codebase
to struct timespec.

Signed-off-by: Alexandros Frantzis <alexandros.frantzis@collabora.com>
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>

tests/surface-screenshot.c

@@ -133,8 +133,8 @@ unpremultiply_and_swap_a8b8g8r8_to_PAMrgba(void *pixels, size_t size)
 }
 
 static void
-trigger_binding(struct weston_keyboard *keyboard, uint32_t time, uint32_t key,
-		void *data)
+trigger_binding(struct weston_keyboard *keyboard, const struct timespec *time,
+		uint32_t key, void *data)
 {
 	const char *prefix = "surfaceshot-";
 	const char *suffix = ".pam";

tests/weston-test.c

@@ -210,8 +210,11 @@ send_key(struct wl_client *client, struct wl_resource *resource,
 {
 	struct weston_test *test = wl_resource_get_user_data(resource);
 	struct weston_seat *seat = get_seat(test);
+	struct timespec time;
 
-	notify_key(seat, 100, key, state, STATE_UPDATE_AUTOMATIC);
+	timespec_from_msec(&time, 100);
+
+	notify_key(seat, &time, key, state, STATE_UPDATE_AUTOMATIC);
 }
 
 static void