[automerger skipped] Update kernel to builds 6508545 am: a7030b0263 am: 392ff2595e -s ours

am skip reason: Change-Id Ib3827c30f7499fe277d168c6556b3a6903aa00cd with SHA-1 fd08d3aa39 is in history

Change-Id: Iee5f1442462f1d7cb883349a7169de353e87c231