[PATCH] igt: xe_exec_reset: Remove RAPID_RESET_STRESS from mixed-engine test

[Nareshkumar Gollakoti <naresh.kumar.g@intel.com>]

The RAPID_RESET_STRESS flag (1 ms reset interval) is incompatible with
MIXED_ENGINE_STRESS. During resets, the KMD rejects EXEC_QUEUE_CREATE
with -EINVAL because engines are momentarily unavailable, causing near-
total submission failure (~9 successful vs ~180k failed in 2 seconds).

Remove RAPID_RESET_STRESS to allow submissions between resets, restoring
realistic mixed-engine workload coverage while keeping default 250ms GT
reset intervals.

'Fixes: fb556e8d9acc ("tests/intel/xe_exec_reset: add gt-stress-reset-mixed-engine-usage subtest")'
Signed-off-by: Nareshkumar Gollakoti <naresh.kumar.g@intel.com>
---
 tests/intel/xe_exec_reset.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tests/intel/xe_exec_reset.c b/tests/intel/xe_exec_reset.c
index e12279d23..9b1687c35 100644
--- a/tests/intel/xe_exec_reset.c
+++ b/tests/intel/xe_exec_reset.c
@@ -1208,7 +1208,7 @@ int igt_main()
 		{ "reset-bo-invalidation", INVALIDATE_BO_STRESS },
 		{ "reset-rapid-cycle", RAPID_RESET_STRESS },
 		{ "reset-destroy-vm-context", DESTROY_VM_CTX_STRESS },
-		{ "reset-mixed-engine-usage", MIXED_ENGINE_STRESS | RAPID_RESET_STRESS },
+		{ "reset-mixed-engine-usage", MIXED_ENGINE_STRESS },
 		{ "reset-pm-transition", PM_TRANSITION_STRESS | DESTROY_VM_CTX_STRESS },
 		{ NULL },
 	};
-- 
2.43.0