fixes coremark linker setting

benchmarks/coremark/tgc/core_portme.mak

@@ -25,6 +25,7 @@ else
     RISCV_ABI:=ilp32
 endif
 BSP_BASE = ../../../bare-metal-bsp
+LINKER_SCRIPT=link.lds
 
 TRIPLET?=riscv64-unknown-elf
 # Flag : OUTFLAG
@@ -58,7 +59,8 @@ ASFLAGS =
 OFLAG 	= -o
 COUT 	= -c
 
-LFLAGS_END = 
+LFLAGS_END = -T $(BSP_BASE)/env/$(BOARD)/$(LINKER_SCRIPT)
+
 # Flag : PORT_SRCS
 # 	Port specific source files can be added here
 #	You may also need cvt.c if the fcvt functions are not provided as intrinsics by your compiler!

benchmarks/dhrystone/Makefile

@@ -5,7 +5,7 @@ ASM_SRCS :=
 C_SRCS := dhry_stubs.c dhry_1.c dhry_2.c
 HEADERS := dhry.h
 
-BOARD=iss
+BOARD?=iss
 LINK_TARGET=link
 RISCV_ARCH:=rv32$(ISA)
 ifeq ($(ISA),e)