Update samples.

samples/0_Intro/hcc_dialects/vadd_hc_array.cpp

@@ -27,7 +27,7 @@ THE SOFTWARE.
 // automatic data management capabilities - instead the programmer
 // takes the reins and controls when copies are executed.
 
-#include <hc.hpp>
+#include <hc/hc.hpp>
 
 int main(int argc, char* argv[]) {
     int sizeElements = 1000000;