Add: new make way enabling multiple asm generated test

tb/test_source_code/tb_risc_v_cpu/test.S

@@ -0,0 +1,10 @@
+# t0 = 0
+li      t0, 0  # R[5]=0
+li      t2, 10 # R[7]=10
+loop_head:
+bge     t0, t2, loop_end
+# Repeated code goes here
+addi    t0, t0, 1 # PC=16
+j		loop_head
+loop_end:
+# R[0]=0