install_imxgputop.h included in the zip doesn’t work anymore, sice it tries to clone imx-gputop from source.codeaurora.org which is now archived
# cloning the imx gputop
git clone git://source.codeaurora.org/external/imx/imx-gputop.git -b release
shouldbe changed to
# cloning the imx gputop
git clone https://github.com/nxp-imx/imx-gputop.git -b release