Bump Security String to 2020-05-05

Implemented:
============
CVE:            References:  Type:  Severity:  Updated AOSP versions:
CVE-2020-0024   A-137015265  EoP    High       8.0, 8.1, 9, 10
CVE-2020-0093   A-148705132  ID     High       8.0, 8.1, 9, 10
CVE-2020-0096   A-145669109  EoP    Critical   8.0, 8.1, 9
CVE-2020-0098   A-144285917  EoP    High       8.0, 8.1, 9, 10
CVE-2020-0100   A-150156584  ID     High       8.0, 8.1
CVE-2020-0101   A-144767096  ID     High       8.0, 8.1, 9, 10
CVE-2020-0102   A-143231677  EoP    High       8.0, 8.1, 9, 10

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

Not Applicable (platform source):
=================================
CVE:            References:  Type:  Severity:  Updated AOSP versions:
CVE-2020-0092   A-145135488  ID     High       10
CVE-2020-0094   A-148223871  EoP    High       9, 10
CVE-2020-0097   A-145981139  EoP    High       9, 10
CVE-2020-0103   A-148107188  RCE    Critical   9, 10
CVE-2020-0104   A-144430870  ID     Moderate   9, 10
CVE-2020-0105   A-144285084  EoP    High       9, 10
CVE-2020-0106   A-148414207  ID     High       10
CVE-2020-0109   A-148059175  EoP    High       9, 10

Change-Id: Ied29bf4b409d35e6944b0fe3bd4e184b3837bba8