Randy noticed that with CONFIG_INET turned off, the following build
errors happen:
	ERROR: "register_inetaddr_notifier" [drivers/staging/csr/csr_wifi.ko] undefined!
	ERROR: "unregister_inetaddr_notifier" [drivers/staging/csr/csr_wifi.ko] undefined!
Reported-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 config CSR_WIFI
        tristate "CSR wireless driver"
-       depends on MMC && CFG80211_WEXT
+       depends on MMC && CFG80211_WEXT && INET
        select WIRELESS_EXT
        select WEXT_PRIV
        help