minadbd: statically link libadbd.

Reduce the amount of wasted space on the recovery image by statically
linking all of the adb libraries into minadbd.

Bug: http://b/150317254
Test: booted aosp_walleye-eng into recovery
Change-Id: I5233b1a23c14f9d478bb77c25ebdbb0ce45bcc5a
Merged-In: I5233b1a23c14f9d478bb77c25ebdbb0ce45bcc5a
(cherry picked from commit 5ee3eba3)