Merge "Add content about support system_dlkm partition" am: 7572416973

Original change: https://android-review.googlesource.com/c/device/generic/common/+/2286974

Change-Id: I38e37dc3c6247abe50c35a7ef392358d853ea2a8
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>