Update MVK to use the latest libvlc 2.1

compileVLCforiOS.sh

@@ -12,7 +12,7 @@ CONFIGURATION="Release"
 NONETWORK=no
 SKIPLIBVLCCOMPILATION=no
 
-TESTEDVLCKITHASH=d0e7b32b4
+TESTEDVLCKITHASH=42c0ae224
 TESTEDMEDIALIBRARYKITHASH=9c6382eb1
 
 usage()