Fix the OpenGL depth buffer values from the vertex shader.

I am not sure i am understanding what the pipeline really does, and more so what
the GC/WII expects here. If my comments are incorrect, please let me know.

This was tested with MP2:E, ZWW on r6075.


git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@6078 8ced0084-cf51-0410-be5f-012b33b47a6e

Source/Core/Common/Src/LinearDiskCache.cpp

@@ -22,7 +22,7 @@ static const char ID[4] = {'D', 'C', 'A', 'C'};
 // Update this to the current SVN revision every time you change shader generation code.
 // We don't automatically get this from SVN_REV because that would mean regenerating the
 // shader cache for every revision, graphics-related or not, which is simply annoying.
-const int version = 5896;
+const int version = 6078;
 
 LinearDiskCache::LinearDiskCache() 
 	: file_(NULL), num_entries_(0) {