iwlwifi: make iwl_init_context static

It's not needed anywhere but during init.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c
index d45def3..8c21db8 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn.c
@@ -488,7 +488,7 @@
 	iwlagn_dev_txfifo_flush(priv, IWL_DROP_ALL);
 }
 
-void iwl_init_context(struct iwl_priv *priv, u32 ucode_flags)
+static void iwl_init_context(struct iwl_priv *priv, u32 ucode_flags)
 {
 	int i;