intel_adsp: set exec for simulator targets

Set exec in combination with custom simulator to all for correct
test/envionment evaluation.

Signed-off-by: Anas Nashif <[email protected]>

Author: nashif

boards/intel/adsp/twister.yaml

@@ -20,16 +20,19 @@ variants:
   intel_adsp/ace20_lnl/sim:
     type: sim
     simulation: custom
+    simulation_exec: acesim
     testing:
       timeout_multiplier: 4
   intel_adsp/ace15_mtpm/sim:
     type: sim
     simulation: custom
+    simulation_exec: acesim
     testing:
       timeout_multiplier: 4
   intel_adsp/ace30/ptl/sim:
     type: sim
     simulation: custom
+    simulation_exec: acesim
     toolchain:
       - xt-clang
     testing: