QOpenGLShaderProgram::hasOpenGLShaderPrograms always returns true

QOpenGLShaderProgram::hasOpenGLShaderPrograms returns true even if the required extensions are not available.

This is caused by qt_gl_resolve_features() in qopenglfunctions.cpp assuming version 2.0 or higher.

Steps to reproduce:
1. Run a Linux system with Mesa drivers
2. Set env variable LIBGL_ALWAYS_INDIRECT=1
3. test QOpenGLShaderProgram::hasOpenGLShaderPrograms
4. compare with LIBGL_ALWAYS_INDIRECT=1 glxinfo

Actual result:
returns true

Expected result:
returns false