Update makefiles.

Note cleanspec required because of b/38205169 (genrule
doesn't delete output files before building, so when
removing some, they get stale).

Test: power vts test compiles
Change-Id: Ie7ef0fc3d943a75fe898238cf861fb7f99f4146b
Fixes: 35813011

• CleanSpec.mk[diff]
• oemlock/1.0/Android.bp[diff]
• power/1.1/Android.bp[diff]
• power/1.1/Android.mk[diff]
• power/Android.bp[diff]
• usb/1.1/Android.bp[diff]
• weaver/1.0/Android.bp[diff]
• wifi/offload/1.0/Android.bp[diff]