Bump Security String to 2020-02-05

Implemented:
============
CVE:            References:  Type:  Severity:  Updated AOSP versions:
CVE-2020-0005   A-141552859  EOP    High       8.0, 8.1, 9, 10
CVE-2020-0014   A-128674520  EoP    High       8.0, 8.1, 9, 10
CVE-2020-0015   A-139017101  EoP    High       8.0, 8.1, 9, 10
CVE-2020-0017   A-123232892  ID     High       8.0, 8.1, 9, 10
CVE-2020-0018   A-139945049  ID     High       8.0, 8.1, 9, 10
CVE-2020-0022   A-143894715  DoS    Moderate   10
                             RCE    Critical   8.0, 8.1, 9
CVE-2020-0026   A-140419401  EoP    High       8.0, 8.1, 9, 10
CVE-2020-0027   A-144040966  EoP    High       8.0, 8.1, 9, 10

Not Implemented:
================
None

Not Applicable (platform source):
=================================
CVE:            References:  Type:  Severity:  Updated AOSP versions:
CVE-2019-2200   A-67319274   EoP    High       10
CVE-2020-0020   A-143118731  ID     High       10
CVE-2020-0021   A-141413692  DoS    High       10
CVE-2020-0023   A-145130871  ID     Critical   10
CVE-2020-0028   A-122652057  ID     High       9

Change-Id: I8361ee2ee4e31daeda84111dac60674bd4dea4f8