Bump Security String to 2019-12-05

Implemented:
============
CVE:            References:     Type:   Severity:       Updated AOSP versions:
CVE-2019-2222   A-140322595     RCE     Moderate        10
                                RCE     Critical        8.0, 8.1, 9
CVE-2019-2223   A-140692129     RCE     Moderate        10
                                RCE     Critical        8.0, 8.1, 9
CVE-2019-2224   A-140328986     RCE     High            8.0, 8.1, 9, 10
CVE-2019-2225   A-110433804     EoP     High            8.0, 8.1, 9, 10
CVE-2019-2226   A-140152619     ID      High            8.0, 8.1, 9, 10
CVE-2019-2229   A-139803872     ID      High            8.0, 8.1, 9, 10
CVE-2019-2232   A-140632678     DoS     Critical        8.0, 8.1, 9, 10

Not Implemented:
================
CVE:            References:     Type:   Severity:       Updated AOSP versions:
None

Not Applicable (platform source):
=================================
CVE:            References:     Type:   Severity:       Updated AOSP versions:
CVE-2019-2217   A-141003796     EoP     High            10
CVE-2019-2218   A-141169173     EoP     High            10
CVE-2019-2219   A-119041698     ID      High            9, 10
CVE-2019-2220   A-138636979     ID      High            9, 10
CVE-2019-2221   A-138583650     EoP     Moderate        10
CVE-2019-2227   A-140768453     ID      High            9, 10
CVE-2019-2228   A-111210196     ID      High            8.0, 8.1, 9, 10
CVE-2019-2230   A-141170038     ID      High            10
CVE-2019-2231   A-141955555     ID      High            9, 10
CVE-2019-9464   A-141028068     EoP     High            10

Change-Id: Ib45178b9e65801e030df422406bfd6622b54658b
Signed-off-by: Vasyl Gello <vasek.gello@gmail.com>