For all the people interested in testing the freedreno driver on
their Android devices. The next commit will hook these up within
the libEGL driver (via the gallium-egl backend).

There may be some rough edges but those can be sorted when a
willing builder/tester comes along.

v2:
 - s/freefreno/freedreno/. Spotted by Matt Turner.
 - Use the installed libdrm headers.

Cc: "10.1 10.2" <mesa-stable@lists.freedesktop.org>
Cc: Rob Clark <robclark@freedesktop.org>
Cc: freedreno@lists.freedesktop.org
Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>