brcmfmac: announce P2P_DEVICE support in wiphy structure

P2P_DEVICE support was removed from brcmfmac for v3.9 kernel with
the commit below:

commit 1527c343c12f3a2aae532aa881d12c6fbf8749f4
Author: Arend van Spriel <arend@broadcom.com>
Date:   Thu Apr 4 12:10:11 2013 +0200

    brcmfmac: remove advertising P2P device support

However, it got merged into wireless-next. But for 3.10 brcmfmac does
support P2P device. Putting it back with this commit.

Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c

@@ -4140,6 +4140,10 @@ static const struct ieee80211_iface_limit brcmf_iface_limits[] = {
 		.types = BIT(NL80211_IFTYPE_P2P_CLIENT) |
 			 BIT(NL80211_IFTYPE_P2P_GO)
 	},
+	{
+		.max = 1,
+		.types = BIT(NL80211_IFTYPE_P2P_DEVICE)
+	}
 };
 static const struct ieee80211_iface_combination brcmf_iface_combos[] = {
 	{
@@ -4197,7 +4201,8 @@ static struct wiphy *brcmf_setup_wiphy(struct device *phydev)
 				 BIT(NL80211_IFTYPE_ADHOC) |
 				 BIT(NL80211_IFTYPE_AP) |
 				 BIT(NL80211_IFTYPE_P2P_CLIENT) |
-				 BIT(NL80211_IFTYPE_P2P_GO);
+				 BIT(NL80211_IFTYPE_P2P_GO) |
+				 BIT(NL80211_IFTYPE_P2P_DEVICE);
 	wiphy->iface_combinations = brcmf_iface_combos;
 	wiphy->n_iface_combinations = ARRAY_SIZE(brcmf_iface_combos);
 	wiphy->bands[IEEE80211_BAND_2GHZ] = &__wl_band_2ghz;