Move aos/controls to frc971/control_loops

Also put what was aos/controls/control_loops.fbs in y2012/control_loops
because that's the only user.

Change-Id: I8f402b0708103077e135a41e55ef5e4f23681d87
Signed-off-by: James Kuszmaul <jabukuszmaul@gmail.com>
diff --git a/y2014_bot3/control_loops/rollers/BUILD b/y2014_bot3/control_loops/rollers/BUILD
index 2f9d7c4..a4ee768 100644
--- a/y2014_bot3/control_loops/rollers/BUILD
+++ b/y2014_bot3/control_loops/rollers/BUILD
@@ -52,7 +52,7 @@
         ":rollers_output_fbs",
         ":rollers_position_fbs",
         ":rollers_status_fbs",
-        "//aos/controls:control_loop",
+        "//frc971/control_loops:control_loop",
         "//aos/logging",
     ],
 )