[WCNCR00155320] misc: add eeprom source switch command

[Description]
Add eeprom source switch command for QA Tool with remote connection usage

[Why]
QA tool needs to read eeprom value from driver,
but there is no command for switching eeprom source (efuse/buffer bin).

Change-Id: I49933cc73edf1df8de4f188f895bd87a8a568a11
Signed-off-by: Glenn Tung <glenn.tung@mediatek.com>
CR-Id: WCNCR00155320
Feature: misc
3 files changed