Don't call into HAL for determining max num EE.

Until we figure out how to deal with HAL binary
compatibility.

Also, do init the EE subsystem even if no SEs
are present; we still want to use the EE subsystem
on the host.

Change-Id: I17aad42e75508e2d04f53107527bce5bfe099ffe

• halimpl/bcm2079x/nfc_nci.c[diff]
• src/adaptation/NfcAdaptation.cpp[diff]
• src/nfa/dm/nfa_dm_api.c[diff]