sm6225-common: Switch cpu variant to cortex-a73

Change-Id: I6a5cb54f573efdfe2b87276122f001ebcaea606e
diff --git a/BoardConfigCommon.mk b/BoardConfigCommon.mk
index 5a23cb3..fd7dfcf 100644
--- a/BoardConfigCommon.mk
+++ b/BoardConfigCommon.mk
@@ -31,7 +31,7 @@
 TARGET_ARCH_VARIANT := armv8-a
 TARGET_CPU_ABI := arm64-v8a
 TARGET_CPU_ABI2 :=
-TARGET_CPU_VARIANT := generic
+TARGET_CPU_VARIANT := cortex-a73
 
 TARGET_2ND_ARCH := arm
 TARGET_2ND_ARCH_VARIANT := armv7-a-neon