Disable flash_recovery.

Change-Id: I8bc9142cd41902ef9a528a5aa177fca237b76b8e
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
core: Add some static libraries

 * Add static versions of libdiskconfig and libsysutils for MiniVold

Change-Id: I9ea9498dcff3f094bbcbb1e05e6d10bc9b83ac74