Correct "Clonned" / "Clonning" typos

Fix version to 3.7 in actions. 

Update python version to 3.6.15 in github actions. 

Signed-off-by: S Pawan Kumar <pawan.kumar@incoresemi.com>

Signed-off-by: S Pawan Kumar <pawan.kumar@incoresemi.com>

riscof_model.py fixes: don't use __init__ return value; use make -k. Fixes #71, #73.

Make is primarily used as a parallel job dispatcher here. Without the -k
flag, a failing test case early in the run prevents others from being
scheduled and dispatched at all. We then get the following:

	INFO | Running Tests on Reference Model.
	INFO | Initiating signature checking.
	ERROR | Signature file : /path/to/DUT-thing.signature does not exist

...and no report is generated.

With "-k", make continues to schedule and dispatch test cases even after
one fails. Fails are determined by comparing signatures against
references anyways.

Fixes #73.

This would ordinarily be too nit-picky even in a code review, and I'd
leave it alone (and would not expect anyone to merge it.) However, this
code is used as a template and will proliferate. It's already showed up
in a few RISCOF integrations into third-party RISC-V cores.

Update gitlab paths

Fix for the issue https://github.com/riscv-software-src/riscof/issues/62

fixes to be compatible with riscv-config 3.2.0+

This function will now pick the first RVTEST_ISA string that is a proper subset of the dut_isa

Fix riscv config version

Fix riscv_config dependency version to 2.10.1

Fix isa generation logic to account for same test with different XLENs.

Fix to ignore irregularities in prefixes of isa. RV32 and RV64 isa can be applicable for the same test.