tests/drmstat: remove the test

Known broken and no longer of any use after the remove of drm
procfs support from the kernel by

commit 151591c2828e18fde1eb8447874704f3422168b0
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date:   Wed, 10 Jul 2013 09:46:12 +0000

    drm: remove procfs code, take 2

Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
tests/*version: add missing string.h header

Prodives memset() and strlen(), used in tests/setversion
tests/getversion respectively.

Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
tests/modetest: silence compiler warning about uninitialised variables

The compiler is unaware of that we have at least one crts/connector/plane
thus it complains that some of our variables will be used uninitialised.

Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
freedreno: use local drm.h over the system one

Otherwise build will fail, as drm/drm.h is not available.

Cc: Rob Clark <robclark@freedesktop.org>
Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
freedreno: set automake options to include subdir-objects

Handles automake complains about lack of forward-compatibility, due to the
source files in the kgsl and msm backends/folders.

Cc: Rob Clark <robclark@freedesktop.org>
Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
intel: Update package name and description in libdrm_intel.pc

Currently the package name and description duplicate that of the
core libdrm. Update those to reflect reality.

Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>