Properly nest build time headers to match arrangement at install time.

The build tree was missing a level of nesting, causing diversions based
on in-tree/out-of-tree use.
KR: Also fixed kfdtest paths

Change-Id: I8638b6d6227daabddd8eaa2aa387ba578b8dfab8
Signed-off-by: Stella Laurenzo <stellaraccident@gmail.com>
Signed-off-by: Kent Russell <kent.russell@amd.com>

tests/kfdtest/src/KFDPMTest.cpp

@@ -25,7 +25,7 @@
 #include "KFDTestUtil.hpp"
 #include "PM4Packet.hpp"
 #include "PM4Queue.hpp"
-#include "hsakmt.h"
+#include "hsakmt/hsakmt.h"
 
 void KFDPMTest::SetUp() {
     ROUTINE_START