net: wireless: bcmdhd: Inject EID value if it has 0 length

Change-Id: Ifd102bee45e1a1e04ba015c39631a741ca74d6ee
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>

Conflicts:
	drivers/net/wireless/bcmdhd/wl_cfg80211.c