net: sfp: Add and use macros for SFP quirks definitions

Add macros SFP_QUIRK(), SFP_QUIRK_M() and SFP_QUIRK_F() for defining SFP
quirk table entries. Use them to deduplicate the code a little bit.

Signed-off-by: Marek Behún <kabel@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>