adds some consistency fixes for variable ISA settings

benchmarks/dhrystone/Makefile

@@ -20,6 +20,5 @@ LDFLAGS := -g -march=$(RISCV_ARCH) -mabi=$(RISCV_ABI) -mcmodel=medlow -Wl,--wrap
 
 TOOL_DIR=$(dir $(compiler))
 
-TRIPLET=riscv32-unknown-elf
 BSP_BASE = ../../bare-metal-bsp
 include $(BSP_BASE)/env/common-gcc.mk

benchmarks/dhrystone/dhry_stubs.c

@@ -16,7 +16,7 @@ void __wrap_scanf(const char* fmt, int* n)
 
 extern volatile uint32_t tohost;
 
-void __wrap_exit(int n){
+void exit(int n){
       tohost = 0x1;
       for (;;);
 }