liblog: Move log messages from Diag_Lib to radio log

 * This is incredibly spammy and QC specifc. Move to radio log.

Change-Id: I775ea9d0fbe1b7d32da3f0e8faef28149f0001ac
libnetutils: add ifc_set_mtu

Change-Id: I3031e9ee38583648350f2c46baa7a9a714b9ea1e
adb: Add "wait-for-sideload" command

 * Waits for connected device to enter sideload mode

Change-Id: I65b4ad86456c13a3bbc48880e12ab7a034707b88
adb: Add a few more wait-for commands

 * wait-for-recovery is obvious.
 * wait-for-online will wait for recovery || device

Change-Id: I70f747bcd201a4157b988d7ed49bcc8e5ff4c85f