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>

tests/gem_linear_blits.c

@@ -36,7 +36,6 @@
 #include <stdlib.h>
 #include <stdio.h>
 #include <string.h>
-#include <assert.h>
 #include <fcntl.h>
 #include <inttypes.h>
 #include <errno.h>
@@ -138,7 +137,7 @@ copy(int fd, uint32_t dst, uint32_t src)
 		drmCommandNone(fd, DRM_I915_GEM_THROTTLE);
 		ret = drmIoctl(fd, DRM_IOCTL_I915_GEM_EXECBUFFER2, &exec);
 	}
-	assert(ret == 0);
+	igt_assert(ret == 0);
 
 	gem_close(fd, handle);
 }