Cray ftn has race with .mod file creation when jobs=n is specified for make

[andrewkallai]

On the invocation of ftn, any USE statements in the Fortran code will indicate to ftn to locate a .mod file specified in the
directory specified by the flag -J <dir> (-J ./ompvv).
When multiple threads are just to execute the make file, each .mod file created in ./ompvv is subject to a race condition, which leads to module file corruption. Hence, running the testsuite using multiple threads with ftn becomes untenable.
A proposed solution is to do away with .mod file creation, and instead store the module info in the .o file created by ftn.
This can be done by using -dm and removing -J .