This patch fixes problem in Makefile that prevented
built-in compilation of iwlcore
Commit that caused this problem: 
eadd3c4b ("iwlwifi: make Makefile
more concise")
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Yi Zhu <yi.zhu@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
-obj-$(CONFIG_IWLCORE)  := iwlcore.o
+obj-$(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