fixes: texture unit mem access sometimes going to smem, bilinear texture filtering; new: cache req_id,

tests/runtime/hello/main.cpp

@@ -1,8 +1,9 @@
 #include <stdio.h>
+#include <vx_print.h>
 
 int main()
 {
-	printf("Hello World!\n");
+	vx_printf("Hello World!\n");
 
 	return 0;
 }