Fix def files so that the implementation agnostic interface definition has no non-standards defined entry points, and change the eglrefimpl specific implementation to place its private entry points high up in the ordinal order space in the implementation region, not the standards based entrypoints region.

JustInTime 0
PlatSecDiagnostics ON
PlatSecEnforcement ON 
PlatSecProcessIsolation ON 
PlatSecEnforceSysBin ON
SYMBIAN_GRAPHICS_USE_GCE ON
SYMBIAN_BASE_USE_GCE ON

StartupMode 7
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ScreenWidth 640 
ScreenHeight 240