sm8450-common: Re-enable broken dup rules check

All failures of this have been resolved

Change-Id: I56a923ac90b98e63c093c8cb65cb1059dde57c49

BoardConfigCommon.mk

@@ -9,8 +9,6 @@ include vendor/xiaomi/sm8450-common/BoardConfigVendor.mk
 
 COMMON_PATH := device/xiaomi/sm8450-common
 
-BUILD_BROKEN_DUP_RULES := true
-
 # A/B
 AB_OTA_UPDATER := true