lair: Adjust Robot Knight scenes to match original US arcade version.

The post-level segment of Dirk jumping down the broken stairs wasn't shown
in the arcade; the Dragon's Lair Enhancement ROM adds it back in, and we
should too when we add support for those features.

Fixes #21.

Author: icculus

data/games/lair/game.lua

@@ -3987,7 +3987,7 @@ scenes = {
 
         seq10 = {
             start_time = time_laserdisc_noseek(),
-            timeout = { when=time_to_ms(5, 676), nextsequence=nil }
+            timeout = { when=time_to_ms(3, 441), nextsequence=nil }
         },
 
         seq11 = {
@@ -4118,7 +4118,7 @@ scenes = {
 
         seq10 = {
             start_time = time_laserdisc_noseek(),
-            timeout = { when=time_to_ms(5, 438), nextsequence=nil }
+            timeout = { when=time_to_ms(3, 203), nextsequence=nil }
         },
 
         seq11 = {