build script: update MobileVLCKit hash

buildAspenProject.sh

@@ -10,7 +10,7 @@ SDK_MIN=5.1
 VERBOSE=no
 CONFIGURATION="Release"
 TESTEDHASH=4608538da
-TESTEDVLCKITHASH=790e7e31b
+TESTEDVLCKITHASH=c4909a8fe
 TESTEDMEDIALIBRARYKITHASH=91f69d1f5
 
 usage()