Copy dependency bug fixes and test modes.

Add dependency for host-to-host copy.

Add debug mode for HIP_DISABLE_HW_COPY_DEP and
HIP_DISABLE_HW_KERNEL_DEP - setting these to -1 now ignores
all dependencies.


[ROCm/hip commit: ba9ad6be80]

projects/hip/docs/markdown/hip_porting_guide.md

@@ -115,7 +115,7 @@ directory names.
 
 
 ```shell
-> hipconverinplace.sh MY_SRC_DIR
+> hipconvertinplace.sh MY_SRC_DIR
 ```