[SP18.1] add dependency object to OffloadController

In order to mock constant in unit test, a dependency object is
introduced with minimum code change to achieve this.

Test: atest TetheringTests
Bug: 149467454
Change-Id: I38628daddcb7be7c74846e78d36dc88f065b97d9
Merged-In: I38628daddcb7be7c74846e78d36dc88f065b97d9
(cherry picked from commit 29aee20bfafce3ca8a5477398b953a06fa2d4823)
3 files changed
tree: 1431608d3845021af6a3efb42623ee13fa6ec856
  1. Tethering/