[Tether14] Add tethering-client jar to whitelist

Allow putting tethering-client into bootclass path.

Bug: 144320246
Test: -build, flash, boot
Change-Id: I42c0f340d11045fbd8ae99fa60a467e643386eff
Merged-In: I42c0f340d11045fbd8ae99fa60a467e643386eff
1 file changed