taimen&walleye builds have overriding commands

These products have warnings about overriding build commands, which
means that there are multiple instructions on how to build a file, and
we've just picked one of them. Which one we pick is usually stable, but
it can change.

Bug: 77611511
Test: turn default to false, walleye still uses a warning
Change-Id: I11d194863b313f64b19291f65219682b169d9ced
diff --git a/BoardConfig.mk b/BoardConfig.mk
index 1eb91b2..01f9c42 100644
--- a/BoardConfig.mk
+++ b/BoardConfig.mk
@@ -28,6 +28,8 @@
 TARGET_2ND_CPU_ABI2 := armeabi
 TARGET_2ND_CPU_VARIANT := cortex-a73
 
+BUILD_BROKEN_DUP_RULES := true
+
 BOARD_KERNEL_CMDLINE += androidboot.hardware=$(TARGET_BOOTLOADER_BOARD_NAME) androidboot.console=ttyMSM0 lpm_levels.sleep_disabled=1
 BOARD_KERNEL_CMDLINE += user_debug=31 msm_rtb.filter=0x37 ehci-hcd.park=3
 BOARD_KERNEL_CMDLINE += service_locator.enable=1