Use cmdline gc-type and phenotype to decide which GC to run am: 0ec131e448 am: a2cfe9e0ad am: 47f2f988ba

Original change: https://android-review.googlesource.com/c/platform/art/+/2308662

Change-Id: I60869e23ce814e658caacdd336c7a12d91ebcbdc
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>