XMOS proprietary license

[armijnhemel]

Description

https://github.com/xmos/lib_lin/blob/master/LICENSE.txt

Note: this is not the same as #3669

[DennisClark]

new license LicenseRef-scancode-xmos-commercial-2017 created in DejaCode enterprise and public. Commercial, with platform deployment restrictions.

@AyanSinhaMahapatra please synchronize when you have time, thanks.

[AyanSinhaMahapatra]

Added in #4478, added also to licensedb and license-expression v30.4.4 , closing.