radiance.mk: Reenable LSU_DUP_DISABLE

LSU dedup is useful for sharedmem for which we don't have a coalescer
on, esp. when broadcasting a single value that's cached in smem to all
threads in the kernel.

radiance.mk

@@ -19,7 +19,6 @@ EXTRA_SIM_PREPROC_DEFINES += \
 	+define+SIMULATION \
 	+define+GPR_RESET \
 	+define+GPR_DUPLICATED \
-	+define+LSU_DUP_DISABLE \
 	+define+DBG_TRACE_CORE_PIPELINE_VCS \
 	+define+PERF_ENABLE \
 	+define+ICACHE_DISABLE +define+DCACHE_DISABLE \
@@ -27,6 +26,7 @@ EXTRA_SIM_PREPROC_DEFINES += \
 	+define+GBAR_CLUSTER_ENABLE \
 	+define+FPU_FPNEW \
 	+define+SMEM_LOG_SIZE=17
+	# +define+LSU_DUP_DISABLE \
 
 VCS_NONCC_OPTS += +vcs+initreg+random