etnaviv: fix typo in query names

Fixes: d0bed0b4 ("etnaviv: support HI performance counters")
Cc: mesa-stable@lists.freedesktop.org
Signed-off-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Reviewed-by: Chris Healy <cphealy@gmail.com>
(cherry picked from commit e1d4882d)