tests/intel/gem_pxp: Fix requirementsHEADmaster

Requirements should either be global in first igt_fixture or
should be placed in each subtests. Placing them in later
fixtures results in misleading reports like:

sudo ./gem_pxp --r hw-rejects-pxp-context
Subtest hw-rejects-pxp-context: SUCCESS (0,001s)
Test requirement not met in [...] ../tests/intel/gem_pxp.c:1317:
Test requirement: pxp_supported

Created few helpers and used them in each subtest, also
fixed closing power debugfs fd.

Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Cc: Alan Previn <alan.previn.teres.alexis@intel.com>
Signed-off-by: Kamil Konieczny <kamil.konieczny@linux.intel.com>
Reviewed-by: Dominik Karol Piątkowski <dominik.karol.piatkowski@intel.com>

0 files changed, 0 insertions, 0 deletions