Fix false positive error in script checking license notices
Fix false positive error in script checking license notices

Remove code block from license_check that evalutes whether a files
licenses are permissive and that there is a SPDX notice. Scancode
sometimes incorrectly attributes a single license notice to permissive
and non-permissive licenses. Removed code block results in many false
positives because it labels any file that has a "non-permissive" license
as such even when there is a permissive license.

Add function spdx_check to scancode-evaluate.py to improve analysis of
copyright and license notice tests.

mbedmicro/mbed,mbedmicro/mbed,mbedmicro/mbed,mbedmicro/mbed,mbedmicro/mbed