iwlwifi: move PCIe into subdirectory

Structure the code a bit more and move all PCIe code
including the hardware configuration files into a
PCIe specific subdirectory.

Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
diff --git a/drivers/net/wireless/iwlwifi/Makefile b/drivers/net/wireless/iwlwifi/Makefile
index 9310027..f155126 100644
--- a/drivers/net/wireless/iwlwifi/Makefile
+++ b/drivers/net/wireless/iwlwifi/Makefile
@@ -15,17 +15,13 @@
 
 # WIFI
 obj-$(CONFIG_IWLWIFI)	+= iwlwifi.o
-iwlwifi-objs		+= iwl-5000.o
-iwlwifi-objs		+= iwl-6000.o
-iwlwifi-objs		+= iwl-1000.o
-iwlwifi-objs		+= iwl-2000.o
 iwlwifi-objs		+= iwl-io.o
-iwlwifi-objs		+= iwl-pci.o
 iwlwifi-objs		+= iwl-drv.o
 iwlwifi-objs		+= iwl-debug.o
 iwlwifi-objs		+= iwl-notif-wait.o
-iwlwifi-objs		+= iwl-trans-pcie.o iwl-trans-pcie-rx.o iwl-trans-pcie-tx.o
+iwlwifi-objs		+= pcie/drv.o pcie/rx.o pcie/tx.o pcie/trans.o
+iwlwifi-objs		+= pcie/1000.o pcie/2000.o pcie/5000.o pcie/6000.o
 
 iwlwifi-$(CONFIG_IWLWIFI_DEVICE_TRACING) += iwl-devtrace.o
 
-ccflags-y += -D__CHECK_ENDIAN__
+ccflags-y += -D__CHECK_ENDIAN__ -I$(src)