Build the vclopengl lib for Android, too, i.e. for all our platforms

Change-Id: I244eb4877801ceb0ff22e8591dccd6b801d00d68
Stripping confuses the Android NDK tool-chain

Change-Id: I0cf84a6ccb783642a3d50a004325a19b79741b32
Need libGLESv2 now then

Change-Id: I87e91202a6005ad0bec3569b2619a5b191991502