opae rtl fixes

driver/rtlsim/Makefile

@@ -35,10 +35,6 @@ VL_FLAGS += --language 1800-2009 --assert -Wall -Wpedantic $(MULTICORE)
 VL_FLAGS += -Wno-DECLFILENAME
 VL_FLAGS += --x-initial unique
 
-# Use 64 bytes DRAM blocks
-CFLAGS += -DGLOBAL_BLOCK_SIZE=64
-VL_FLAGS += -DGLOBAL_BLOCK_SIZE=64
-
 # Enable Verilator multithreaded simulation
 #THREADS ?= $(shell python3 -c 'import multiprocessing as mp; print(max(1, mp.cpu_count() // 2))')
 #VL_FLAGS += --threads $(THREADS)