qcacld-3.0: Only compile QCA6290 registers for lithium

QCA6290 is part of the Lithium chipset family. Without
support for lithium, compiling in the register deffinitions
for QCA6290 does not make sense.

Change-Id: Id251a931287d2662e0b910da299c12e9d45b719c

Kbuild

@@ -892,9 +892,12 @@ HIF_CE_OBJS :=  $(WLAN_COMMON_ROOT)/$(HIF_CE_DIR)/ce_bmi.o \
                 $(WLAN_COMMON_ROOT)/$(HIF_CE_DIR)/ce_service.o \
                 $(WLAN_COMMON_ROOT)/$(HIF_CE_DIR)/ce_tasklet.o \
                 $(WLAN_COMMON_ROOT)/$(HIF_DIR)/src/regtable.o \
-                $(WLAN_COMMON_ROOT)/$(HIF_DIR)/src/qca6290def.o \
                 $(WLAN_COMMON_ROOT)/$(HIF_CE_DIR)/ce_service_srng.o \
 
+ifeq ($(CONFIG_LITHIUM),y)
+HIF_CE_OBJS +=  $(WLAN_COMMON_ROOT)/$(HIF_DIR)/src/qca6290def.o
+endif
+
 HIF_USB_OBJS := $(WLAN_COMMON_ROOT)/$(HIF_USB_DIR)/usbdrv.o \
                 $(WLAN_COMMON_ROOT)/$(HIF_USB_DIR)/hif_usb.o \
                 $(WLAN_COMMON_ROOT)/$(HIF_USB_DIR)/if_usb.o \