HDMICEC: Generalize the address validation for the CEC messages

Using one paramter, the previous validator checked if a message should be directly addressed or broadcasted and if it is allowed that its source can be unregistered.

A cleaner solution is to use one parameter to validate the source and
another to validate the destination of the message.

This way, we can have more specific validations in the future for
different messages.

Test: atest com.android.server.hdmi && atest CtsHdmiCecHostTestCases
Bug: 280046486
Change-Id: I6817e5172ce0b8e480aee31faae343ef88adb680