Revert "gdb: Disable simulator target and tui"

This reverts commit 7ce78c96c94cba3fb5d4a2a968cef492d8f82a11.
enable libgomp
Turn arm-unknown-linux-androideabi into the actually used arm-linux-androideabi

Change-Id: I876bb815cd2a3d66ca4efcfb36f64ce3a722b718
Enable java in GCC

Change-Id: I3846027816996b75dfcc3ff3947b994e841aef6a