tests/i915/i915_hangman: Use the correct context in hangcheck_unterminated

The hangman framework sets up a context that is valid for all engines
and has things like banning disabled. The 'unterminated' test then
ignores it and uses the default context. Fix that.

Signed-off-by: John Harrison <John.C.Harrison@Intel.com>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>

tests/i915/i915_hangman.c

@@ -347,6 +347,7 @@ static void hangcheck_unterminated(const intel_ctx_t *ctx)
 	memset(&execbuf, 0, sizeof(execbuf));
 	execbuf.buffers_ptr = (uintptr_t)&gem_exec;
 	execbuf.buffer_count = 1;
+	execbuf.rsvd1 = ctx->id;
 
 	gem_execbuf(device, &execbuf);
 	if (gem_wait(device, handle, &timeout_ns) != 0) {