solana: TARGET_USES_CUSTOM_KEXECFILES

Change-Id: I4ed4730f4b5ac77994077c8ee371f2631895480e
init.*.rc: update bt tether services and fix safestrap mounts

Change-Id: I6ceb827fb8ba0ab23278813fa335227660ec1616
Merge "solana: TARGET_USES_CUSTOM_KEXECFILES" into cm-10.2
Merge "init.*.rc: update bt tether services and fix safestrap mounts" into cm-10.2