Merge pull request #136 from mangupta/update_install_markdown

[doc] Add details of HIP build time dependencies to INSTALL.md

hipamd/INSTALL.md

@@ -59,7 +59,8 @@ HIP source code is available and the project can be built from source on the HCC
 
 1. Follow the above steps to install and validate the binary packages.
 2. Download HIP source code (from the [GitHub repot](https://github.com/ROCm-Developer-Tools/HIP).)
-3. Build and install HIP (This is the simple version assuming default paths ; see below for additional options.)
+3. Install HIP build-time dependencies using ```sudo apt-get install libelf-dev```.
+4. Build and install HIP (This is the simple version assuming default paths ; see below for additional options.)
 ```
 cd HIP
 mkdir build