Skip STS tests for 2020-0224 on low mem devices

Bug: 156280923
Test: sts-tradefed run sts-engbuild-no-spl-lock -m CtsSecurityBulletinHostTestCases -t android.security.cts.CVE_2020_0224
Change-Id: Ib1e29d083eb712f625b516cace9bcb0b19fde939
Merged-In: Ib1e29d083eb712f625b516cace9bcb0b19fde939
1 file changed