HDMI-CEC: Increase number of retry for DevicePowerStatusAction

DevicePowerStatusAction takes more time when the screen is off and on.
This might cause the timeout to happen more frequent, leading to wrong
mIsCecAvailable state. The number of retry is increased in this CL.

Bug: b/420549554
Test: atest com.android.server.hdmi and updated tests
Flag: EXEMPT minor fix
Change-Id: Id073c83bca73024fd2d04ca66f645144176e8c08