The variable is set as cache, so that user can override.
But the hard coded setting is preventing override. Removed the same
Change-Id: Ica5f9074a6532f465705a8dd1a8f21c6643ef49e
hip-samples package should depends on hip-dev/devel and hipcc rather than hip-runtime-amd
Updated the same for static package as well
DependsOn: Iacab7993dffaa00efd1344d3eafb55f6317d1509
Change-Id: I1470475ddbaf9201ba0e39977aeb48b0382f59c9