find7a: drop hwui, use better gfx config values

Signed-off-by: houst0nn <houstonn@gmail.com>
find7a: add retire fence

Signed-off-by: houst0nn <houstonn@gmail.com>
find7a: change owner of kgsl/proc debugfs to system

Signed-off-by: houst0nn <houstonn@gmail.com>