Sarbojit2019
b72170d037
* Enabled gcc for hip host code
* Adding tests for hip code + (gcc & g++), without kernels
* Excluding nvcc platforms for gcc and g++ tests + Addressing review comments
* minor code clean-up
* Add rocm include path
* Added relative path for library
* Hiding non supported functions for gcc
* Incorporating review comments
[ROCm/hip commit: 3bfff0a23d]