By adding a hook library to call XInitThreads() before getting egl
display.
Enabled by default, set env "MALI_X11_NO_FORCE_THREADS" to disable.
Change-Id: I0af8b29c90149bd7a920bfd54f06d5129b5e446c
Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com>