qcacld-3.0: use debugfs to show ini configs

Create the debugfs interface to show the ini configs.
Usage: cat /sys/kernel/debug/wlan/ini_config

Change-Id: I2c6aeeaae6d79739bb8ab82740e8be678c18fd89
CRs-Fixed: 2572142
diff --git a/Kbuild b/Kbuild
index d37e7ea..7a54c35 100644
--- a/Kbuild
+++ b/Kbuild
@@ -105,6 +105,7 @@
 HDD_OBJS += $(HDD_SRC_DIR)/wlan_hdd_debugfs_connect.o
 HDD_OBJS += $(HDD_SRC_DIR)/wlan_hdd_debugfs_offload.o
 HDD_OBJS += $(HDD_SRC_DIR)/wlan_hdd_debugfs_roam.o
+HDD_OBJS += $(HDD_SRC_DIR)/wlan_hdd_debugfs_config.o
 ifeq ($(CONFIG_WLAN_MWS_INFO_DEBUGFS), y)
 HDD_OBJS += $(HDD_SRC_DIR)/wlan_hdd_debugfs_coex.o
 endif