backports: add defconfigs for Marvell wifi drivers

Enable users to be able to conveniently select the Marvell wifi drivers that
they need.

Signed-off-by: Tamás Szűcs <tszucs@protonmail.ch>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
diff --git a/backport/defconfigs/libertas b/backport/defconfigs/libertas
new file mode 100644
index 0000000..1cbb97d
--- /dev/null
+++ b/backport/defconfigs/libertas
@@ -0,0 +1,10 @@
+CPTCFG_CFG80211=m
+CPTCFG_CFG80211_WEXT=y
+CPTCFG_WLAN=y
+CPTCFG_WLAN_VENDOR_MARVELL=y
+CPTCFG_LIBERTAS=m
+CPTCFG_LIBERTAS_USB=m
+CPTCFG_LIBERTAS_CS=m
+CPTCFG_LIBERTAS_SDIO=m
+CPTCFG_LIBERTAS_SPI=m
+CPTCFG_LIBERTAS_MESH=y
diff --git a/backport/defconfigs/libertas_tf b/backport/defconfigs/libertas_tf
new file mode 100644
index 0000000..dc93166
--- /dev/null
+++ b/backport/defconfigs/libertas_tf
@@ -0,0 +1,9 @@
+CPTCFG_CFG80211=m
+CPTCFG_CFG80211_WEXT=y
+CPTCFG_MAC80211=m
+CPTCFG_MAC80211_MESH=y
+CPTCFG_MAC80211_LEDS=y
+CPTCFG_WLAN=y
+CPTCFG_WLAN_VENDOR_MARVELL=y
+CPTCFG_LIBERTAS_THINFIRM=m
+CPTCFG_LIBERTAS_THINFIRM_USB=m
diff --git a/backport/defconfigs/mwifiex b/backport/defconfigs/mwifiex
new file mode 100644
index 0000000..25c1113
--- /dev/null
+++ b/backport/defconfigs/mwifiex
@@ -0,0 +1,8 @@
+CPTCFG_CFG80211=m
+CPTCFG_CFG80211_WEXT=y
+CPTCFG_WLAN=y
+CPTCFG_WLAN_VENDOR_MARVELL=y
+CPTCFG_MWIFIEX=m
+CPTCFG_MWIFIEX_SDIO=m
+CPTCFG_MWIFIEX_PCIE=m
+CPTCFG_MWIFIEX_USB=m
diff --git a/backport/defconfigs/mwl8k b/backport/defconfigs/mwl8k
new file mode 100644
index 0000000..5f25b07
--- /dev/null
+++ b/backport/defconfigs/mwl8k
@@ -0,0 +1,7 @@
+CPTCFG_CFG80211=m
+CPTCFG_CFG80211_WEXT=y
+CPTCFG_MAC80211=m
+CPTCFG_MAC80211_LEDS=y
+CPTCFG_WLAN=y
+CPTCFG_WLAN_VENDOR_MARVELL=y
+CPTCFG_MWL8K=m