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

Change-Id: I4ffcb4d5afe329377aca63ae0a962c1dc567bfd8

[ROCm/hip commit: a0d32f5899]

projects/hip/samples/0_Intro/bit_extract/Makefile

@@ -20,7 +20,8 @@
 
 #Dependencies : [MYHIP]/bin must be in user's path.
 
-HIP_PATH?= $(wildcard /opt/rocm/hip)
+ROCM_PATH?= $(wildcard /opt/rocm/)
+HIP_PATH?= $(wildcard $(ROCM_PATH)/hip)
 ifeq (,$(HIP_PATH))
 	HIP_PATH=../../..
 endif