iwlwifi: make Makefile more concise

Also change CONFIG_IWLCORE_RFKILL to CONFIG_IWLWIFI_RFKILL to
be more consistent with other config variables.

Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Acked-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/iwlwifi/Makefile b/drivers/net/wireless/iwlwifi/Makefile
index 741ea34..4f3e88b 100644
--- a/drivers/net/wireless/iwlwifi/Makefile
+++ b/drivers/net/wireless/iwlwifi/Makefile
@@ -1,26 +1,13 @@
-obj-$(CONFIG_IWLCORE)	+= iwlcore.o
-iwlcore-objs 		= iwl-core.o iwl-eeprom.o iwl-hcmd.o
-
-ifeq ($(CONFIG_IWLWIFI_DEBUGFS),y)
-	iwlcore-objs += iwl-debugfs.o
-endif
-
-ifeq ($(CONFIG_IWLWIFI_LEDS),y)
-	iwlcore-objs += iwl-led.o
-endif
-
-ifeq ($(CONFIG_IWLCORE_RFKILL),y)
-	iwlcore-objs += iwl-rfkill.o
-endif
+obj-$(CONFIG_IWLCORE)	:= iwlcore.o
+iwlcore-objs 		:= iwl-core.o iwl-eeprom.o iwl-hcmd.o
+iwlcore-$(CONFIG_IWLWIFI_DEBUGFS) += iwl-debugfs.o
+iwlcore-$(CONFIG_IWLWIFI_LEDS) += iwl-led.o
+iwlcore-$(CONFIG_IWLWIFI_RFKILL) += iwl-rfkill.o
 
 obj-$(CONFIG_IWL3945)	+= iwl3945.o
-iwl3945-objs		= iwl3945-base.o iwl-3945.o iwl-3945-rs.o
-
-ifeq ($(CONFIG_IWL3945_LEDS),y)
-	iwl3945-objs += iwl-3945-led.o
-endif
-
+iwl3945-objs		:= iwl3945-base.o iwl-3945.o iwl-3945-rs.o
+iwl3945-$(CONFIG_IWL3945_LEDS) += iwl-3945-led.o
 
 obj-$(CONFIG_IWL4965)	+= iwl4965.o
-iwl4965-objs		= iwl4965-base.o iwl-4965.o iwl-4965-rs.o iwl-sta.o
+iwl4965-objs		:= iwl4965-base.o iwl-4965.o iwl-4965-rs.o iwl-sta.o