build: qcom_target: Clean up QCOM_HARDWARE_VARIANT checks

Change-Id: I97f812412f94a0638e78eaf7e45112b6924120a9

build/core/qcom_target.mk

@@ -22,6 +22,10 @@ $(call project-set-path,qcom-$(2),$(strip $(path)))
 endef
 
 ifeq ($(BOARD_USES_QCOM_HARDWARE),true)
+    B_FAMILY := msm8226 msm8610 msm8974
+    B64_FAMILY := msm8992 msm8994
+    BR_FAMILY := msm8909 msm8916
+    UM_FAMILY := msm8937 msm8953
 
     qcom_flags := -DQCOM_HARDWARE
     qcom_flags += -DQCOM_BSP
@@ -60,24 +64,22 @@ ifeq ($(BOARD_USES_QCOM_HARDWARE),true)
     2ND_CLANG_TARGET_GLOBAL_CFLAGS += $(qcom_flags)
     2ND_CLANG_TARGET_GLOBAL_CPPFLAGS += $(qcom_flags)
 
-    ifeq ($(QCOM_HARDWARE_VARIANT),)
-        ifneq ($(filter msm8610 msm8226 msm8974,$(TARGET_BOARD_PLATFORM)),)
-            QCOM_HARDWARE_VARIANT := msm8974
-        else
-        ifneq ($(filter msm8909 msm8916,$(TARGET_BOARD_PLATFORM)),)
-            QCOM_HARDWARE_VARIANT := msm8916
-        else
-        ifneq ($(filter msm8953 msm8937,$(TARGET_BOARD_PLATFORM)),)
-            QCOM_HARDWARE_VARIANT := msm8937
-        else
-        ifneq ($(filter msm8992 msm8994,$(TARGET_BOARD_PLATFORM)),)
-            QCOM_HARDWARE_VARIANT := msm8994
-        else
-            QCOM_HARDWARE_VARIANT := $(TARGET_BOARD_PLATFORM)
-        endif
-        endif
-        endif
-        endif
+    ifeq ($(call is-board-platform-in-list, $(B_FAMILY)),true)
+        QCOM_HARDWARE_VARIANT := msm8974
+    else
+    ifeq ($(call is-board-platform-in-list, $(B64_FAMILY)),true)
+        QCOM_HARDWARE_VARIANT := msm8994
+    else
+    ifeq ($(call is-board-platform-in-list, $(BR_FAMILY)),true)
+        QCOM_HARDWARE_VARIANT := msm8916
+    else
+    ifeq ($(call is-board-platform-in-list, $(UM_FAMILY)),true)
+        QCOM_HARDWARE_VARIANT := msm8937
+    else
+        QCOM_HARDWARE_VARIANT := $(TARGET_BOARD_PLATFORM)
+    endif
+    endif
+    endif
     endif
 
 $(call project-set-path,qcom-audio,hardware/qcom/audio-caf/$(QCOM_HARDWARE_VARIANT))