qcacld-3.0: Enable HDD Request Manager

The HDD Request Manager is ready for production use, so add it
to the Kbuild.

Change-Id: I4e598e51983475318bc668e786aca690a934bd6c
CRs-Fixed: 2005299

Kbuild

@@ -408,6 +408,7 @@ HDD_OBJS := 	$(HDD_SRC_DIR)/wlan_hdd_assoc.o \
 		$(HDD_SRC_DIR)/wlan_hdd_oemdata.o \
 		$(HDD_SRC_DIR)/wlan_hdd_power.o \
 		$(HDD_SRC_DIR)/wlan_hdd_regulatory.o \
+		$(HDD_SRC_DIR)/wlan_hdd_request_manager.o \
 		$(HDD_SRC_DIR)/wlan_hdd_scan.o \
 		$(HDD_SRC_DIR)/wlan_hdd_softap_tx_rx.o \
 		$(HDD_SRC_DIR)/wlan_hdd_tx_rx.o \