Add the Panfrost pps driver.
v2: Human readable names for counter blocks and use `unreachable`.
v3: Use libpanfrost_perf to collect counter values.
Signed-off-by: Antonio Caggiano <antonio.caggiano@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/10215>
