Scripts/Ulduar: fix Achievs "Champion of Ulduar" and "Conqueror of Ulduar"

Signed-off-by: treak <goodfeelingzzz@gmail.com>
(cherry picked from commit 341e374c723f0dc78e755ca962d22d5d9a8f54d8)

Conflicts:
	src/server/scripts/Northrend/Ulduar/Ulduar/instance_ulduar.cpp

Codestyle

(cherry picked from commit 3530b938a8d390d4d39ac840d5b0e7403b08dbc5)