TetherController - use %u not %d for uint32_t formatting

(not sure why this is not triggering a compiler warning of some kind)

Tested: builds
Bug: 150736748
Signed-off-by: Maciej Żenczykowski <maze@google.com>
Change-Id: Icd20698fbc98dd8537921fe18d1a68f554095d9c
Merged-In: Icd20698fbc98dd8537921fe18d1a68f554095d9c
1 file changed