qcacld-3.0: Kbuild: Assign hal_rx_flow.o to HAL_OBJS

Currently hal_rx_flow.o is assigned to DP_OBJS, but since this is a
HAL file, change the assignment to HAL_OBJS.

Change-Id: Ie7c56300d3dd60b52305b5b3c7ace58c6e8cdb57
CRs-Fixed: 2867882

Kbuild

@@ -2221,7 +2221,7 @@ HAL_OBJS :=	$(WLAN_COMMON_ROOT)/$(HAL_DIR)/wifi3.0/hal_srng.o \
 		$(WLAN_COMMON_ROOT)/$(HAL_DIR)/wifi3.0/hal_reo.o
 
 ifeq ($(CONFIG_RX_FISA), y)
-DP_OBJS += $(WLAN_COMMON_ROOT)/$(HAL_DIR)/wifi3.0/hal_rx_flow.o
+HAL_OBJS += $(WLAN_COMMON_ROOT)/$(HAL_DIR)/wifi3.0/hal_rx_flow.o
 endif
 
 ifeq ($(CONFIG_CNSS_QCA6290), y)