MLK-18675-19 brcmfmac: make firmware eap_restrict a module parameter

MLK-18675-19 brcmfmac: make firmware eap_restrict a module parameter

When eap_restrict is enabled, firmware will toss non-802.1x frames from
tx/rx data path if station not yet authorized.
Internal firmware eap_restrict is disabled by default. This patch makes
it possible to enable firmware eap_restrict by specifying
eap_restrict=1 as module parameter.

Signed-off-by: Wright Feng <wright.feng@cypress.com>
Signed-off-by: Fugang Duan <fugang.duan@nxp.com>
(Vipul: Fixed merge conflicts)
Signed-off-by: Vipul Kumar <vipul_kumar@mentor.com>