Provide valid station ID and key by default so Makefile can generate valid .eep image.
Provide valid station ID and key by default so Makefile can generate
valid .eep image.

google/nfc-smart-tag,google/nfc-smart-tag,google/nfc-smart-tag,aglne/nfc-smart-tag,google/nfc-smart-tag,aglne/nfc-smart-tag,aglne/nfc-smart-tag,google/nfc-smart-tag,aglne/nfc-smart-tag