Add blank line before function instead of at the end

Authored-By: Jim Lin <jim@andestech.com>

rvv-intrinsic-generator/rvv_intrinsic_gen/generator.py

@@ -470,8 +470,9 @@ def write_file_header(self, has_float_type):
       self.fd.write(gnu_header)
     else:
       self.fd.write("#include <stdint.h>\n")
-    self.fd.write("#include <riscv_vector.h>\n\n")
+    self.fd.write("#include <riscv_vector.h>\n")
     if self.toolchain_type != ToolChainType.LLVM:
+      self.fd.write("\n")
       self.fd.write("typedef _Float16 float16_t;\n")
       self.fd.write("typedef float float32_t;\n")
       self.fd.write("typedef double float64_t;\n")
@@ -559,6 +560,7 @@ def output_call_arg(arg_name, type_name):
 
     # Write test func body.
     # Write test func. func_decl has end of ";" and "\n"
+    self.fd.write("\n")
     self.fd.write(func_decl[:-2])
     self.fd.write(" {\n")
 
@@ -567,7 +569,7 @@ def output_call_arg(arg_name, type_name):
         map(lambda a: output_call_arg(a[0], a[1]), kwargs.items()))
     self.fd.write(call_args)
     self.fd.write(");\n")
-    self.fd.write("}\n\n")
+    self.fd.write("}\n")
     self.fd.flush()  # To make sure the data flushed when post_gen.
 
   def post_gen(self):