iwlwifi: move TIME_UNIT

We're getting rid of iwl-core.h, move TIME_UNIT out.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.h b/drivers/net/wireless/iwlwifi/iwl-agn.h
index 29d21c8..34900e6 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn.h
+++ b/drivers/net/wireless/iwlwifi/iwl-agn.h
@@ -82,6 +82,7 @@
 extern struct iwl_lib_ops iwl6030_lib;
 
 
+#define TIME_UNIT		1024
 
 /*****************************************************
 * DRIVER STATUS FUNCTIONS