[media] tm6000: add detection based on eeprom name

On some situations, it is desired to use eeprom data to detect
the board type. This patch adds a logic for it and fixes 2 detection
issues:
	1) 10Moons UT-821 uses a generic Trident ID. Other boards
also share the same ID. So, better to use an alternative way for
it;
	2) Sometimes, HVR-900H is loaded with the default Trident
ID. This seems to be some hardware bug or race condition.

The new logic will only be enabled if the device is detected as
having a generic ID.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>