Revert "m7: Define support for Mifare tags"

This is already included as part of the Nfc app.

This reverts commit 01e92e07011595f8f6aa9a8810625411a416e3f6.

Change-Id: I20858cfb4b01190b8bd3ed3de9e36a21fc020935

Conflicts:
	m7-common.mk