SWDEV-287830 - Remove hardcoding of /opt/rocm path from hip samples (#2391)

Change-Id: I4ffcb4d5afe329377aca63ae0a962c1dc567bfd8

samples/1_Utils/hipBusBandwidth/Makefile

@@ -18,7 +18,8 @@
 # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 # THE SOFTWARE.
 
-HIP_PATH?= $(wildcard /opt/rocm/hip)
+ROCM_PATH?= $(wildcard /opt/rocm/)
+HIP_PATH?= $(wildcard $(ROCM_PATH)/hip)
 ifeq (,$(HIP_PATH))
 	HIP_PATH=../../..
 endif