Allow "dpcpp" in the name of the path to the compiler executable
We only intended to prohibit /path/to/dpcpp, but inadvertently we also prohibited e.g. /opt/dpcpp/path/to/icpx.
Refs #4716
We only intended to prohibit /path/to/dpcpp, but inadvertently we also prohibited e.g. /opt/dpcpp/path/to/icpx.
Refs #4716