panfrost: Add userspace crash dump decoder and analyser

Introduces a binary dump analyser and BO decoder whose format was partially
borrowed from etnaviv's kernel driver. It leverages the pandecode library to
analyse BO's attached to the GPU job that caused the crash.

Binary dump should be generated by a component of Panfrost's kernel driver.

Signed-off-by: Adrián Larumbe <adrian.larumbe@collabora.com>
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merge request