[Wi-Fi] [Source] Character limit: Factory Wi‑Fi MAC address and Randomized MAC...

[Wi-Fi] [Source] Character limit: Factory Wi‑Fi MAC address and Randomized MAC address, length limit issue

[CHAR LIMIT=30] is too short for translation.

Solution: Extend to 50 characters for both Factory Wi-Fi MAC address (require 40 characters), and Randomized MAC address (require 37 characters).

Bug: 142284108
Bug: 142283151
Test: None, just extend the string length for translation.
Change-Id: I41e99d2cd85ab527a1bd073cab83b4bf61234c98