Bump Security Patch Level to 2018-12-01

CVE-2018-9548	A-112555574	High     Major deviations from upstream
CVE-2018-9549	A-112160868	Critical Change 236189
CVE-2018-9552	A-113260892	Critical No libhevc
CVE-2018-9553	A-116615297	High     Chromacity doesn't exist
CVE-2018-9554	A-114770654	High     Media Extractors don't exist
CVE-2018-9555	A-112321180	Critical No LE Coc flow control modes
CVE-2018-9557	A-35385357*	High     Change 243455
CVE-2018-9558	A-112161557	High	 Change 236193
CVE-2018-9559	A-112731440	High	 Change 236195
CVE-2018-9566	A-74249842	High	 Change 236206

CVE-2018-9560	A-79946737	High	 Change 236196
CVE-2018-9562	A-113164621	High	 Change 236197

Reference version: 7.0

Change-Id: I3cf28041b2f5eadf52bf10bc658fe390daf35a15