[Follow-up] Set min_sdk_version to libgrpcio_sys dependencies. am: cc7ec0cde9

Original change: https://android-review.googlesource.com/c/platform/external/grpc-grpc/+/3452334

Change-Id: I57f98e0e057d8fe44a2e516f024638ea0b1515e8
Signed-off-by: Automerger Merge Worker <[email protected]>