Log Message:
freerdp2: Update to 2.1.1

# 2020-05-20  Version 2.1.1

Important notes:
* CVE: GHSL-2020-100 OOB Read in ntlm_read_ChallengeMessage
* CVE: GHSL-2020-101 OOB Read in security_fips_decrypt due to uninitialized value
* CVE: GHSL-2020-102 OOB Write in crypto_rsa_common
* Enforce synchronous legacy RDP encryption count (#6156)
* Fixed some leaks and crashes missed in 2.1.0
* Removed dynamic channel listener limits
* Lots of resource cleanup fixes (clang sanitizers)
* A couple of performance improvements
* Various small annoyances eliminated (typos, prefilled username for windows \ 
client, ...)