tests/gem_workarounds: adapt to constant wa list from driver
tests/gem_workarounds: adapt to constant wa list from driver

Driver now returns the constant values that were set once
on ring initialization time. Extend the simple interface
check to all gens (i915_wa_registers needs to be present).
Due to delay when render context is visible on cpu side,
wait gpu to execute something on default context to get rid
of undeterministic behaviour by sometimes getting all ones.

Cc: Arun Siluvery <45539a6d2f15added20c855b1db401baa019b5e8@linux.intel.com>
Signed-off-by: Mika Kuoppala <cd221c71e765d1ce593d15b204fee351fb09fd98@intel.com>

chenxianqin/intel-gpu-tools,mv0/intel-gpu-tools,dlespiau/checkmate-test-igt,mv0/intel-gpu-tools,tiagovignatti/intel-gpu-tools,chenxianqin/intel-gpu-tools,yipdw/intel-gpu-tools,yipdw/intel-gpu-tools,chenxianqin/intel-gpu-tools,dlespiau/checkmate-test-igt,mv0/intel-gpu-tools,erikarn/intel-gpu-tools,tiagovignatti/intel-gpu-tools,yipdw/intel-gpu-tools,yipdw/intel-gpu-tools,erikarn/intel-gpu-tools,tiagovignatti/intel-gpu-tools,dlespiau/checkmate-test-igt,chenxianqin/intel-gpu-tools,erikarn/intel-gpu-tools,erikarn/intel-gpu-tools,mv0/intel-gpu-tools,dlespiau/checkmate-test-igt,tiagovignatti/intel-gpu-tools