autotest: move first landing waypoint further out

pathological conditions can mean we're not lined up correctly afterwards and overshoot

Tools/autotest/Generic_Missions/QuadPlaneDalbyRTL.txt

@@ -1,6 +1,6 @@
 QGC WPL 110
 0	0	0	16	0.000000	0.000000	0.000000	0.000000	-27.274439	151.290064	343.209991	1
 1	0	3	189	0.000000	0.000000	0.000000	0.000000	-27.270617	151.283268	28.590000	1
-2	0	3	16	0.000000	0.000000	0.000000	0.000000	-27.272859	151.286018	28.789999	1
+2	0	3	16	0.000000	0.000000	0.000000	0.000000	-27.272632	151.284895	29.029999	1
 3	0	3	16	0.000000	0.000000	0.000000	0.000000	-27.273316	151.288023	30.000000	1
 4	0	3	85	0.000000	0.000000	0.000000	0.000000	-27.273771	151.289905	0.000000	1