qcacld-3.0: Add debugfs for unit_test_host/unit_test_target

These debugfs files are to replace wext cmd setUnitTestCmd
/unit_test/wlan_suspend/wlan_resume.

unit_test_host:
    /sys/kernel/debug/wlan_xx/unit_test_host
    wlan_xx is driver name
unit_test_target:
    /sys/kernel/debug/wlan_xx/unit_test_target
    wlan_xx is adapter name
wlan_suspend:
    /sys/kernel/debug/wlan_xx/wlan_suspend
    wlan_xx is adapter name
wlan_resume:
    /sys/kernel/debug/wlan_xx/wlan_resume
    wlan_xx is adapter name

Change-Id: I1ddf44b47a3f0d2e11ff74022dc1a26888da974c
CRs-Fixed: 2631424

Kbuild

@@ -88,6 +88,10 @@ ifeq ($(CONFIG_WLAN_FEATURE_PERIODIC_STA_STATS), y)
 HDD_OBJS += $(HDD_SRC_DIR)/wlan_hdd_periodic_sta_stats.o
 endif
 
+ifeq ($(CONFIG_UNIT_TEST), y)
+HDD_OBJS += $(HDD_SRC_DIR)/wlan_hdd_unit_test.o
+endif
+
 ifeq ($(CONFIG_WLAN_WEXT_SUPPORT_ENABLE), y)
 HDD_OBJS += $(HDD_SRC_DIR)/wlan_hdd_wext.o \
 	    $(HDD_SRC_DIR)/wlan_hdd_hostapd_wext.o
@@ -114,6 +118,7 @@ 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
+HDD_OBJS += $(HDD_SRC_DIR)/wlan_hdd_debugfs_unit_test.o
 ifeq ($(CONFIG_WLAN_MWS_INFO_DEBUGFS), y)
 HDD_OBJS += $(HDD_SRC_DIR)/wlan_hdd_debugfs_coex.o
 endif