tests: s/assert/igt_assert

Just a wholesale rollout for now, we can refine later on.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
diff --git a/tests/gem_prw_concurrent_blit.c b/tests/gem_prw_concurrent_blit.c
index f828eb3..cbac71b 100644
--- a/tests/gem_prw_concurrent_blit.c
+++ b/tests/gem_prw_concurrent_blit.c
@@ -38,7 +38,6 @@
 #include <stdlib.h>
 #include <stdio.h>
 #include <string.h>
-#include <assert.h>
 #include <fcntl.h>
 #include <inttypes.h>
 #include <errno.h>
@@ -73,7 +72,7 @@
 	vaddr = tmp = malloc(size*4);
 	drm_intel_bo_get_subdata(bo, 0, size*4, tmp);
 	while (size--)
-		assert(*vaddr++ == val);
+		igt_assert(*vaddr++ == val);
 	free(tmp);
 }
 
@@ -83,7 +82,7 @@
 	drm_intel_bo *bo;
 
 	bo = drm_intel_bo_alloc(bufmgr, "bo", 4*width*height, 0);
-	assert(bo);
+	igt_assert(bo);
 
 	return bo;
 }