makefile: change to stdout/err explicit redirection

Signed-off-by: Jerry Zhang Jian <[email protected]>

Author: jerryzj

rvv-intrinsic-generator/Makefile.api

@@ -39,4 +39,4 @@ clean:
 	rm -f test_report.xml
 
 %.log: $(BASE_DIR)/%.c
-	-$(CC) $< -S -o /dev/null $(ARCH_FLAG) $(CFLAGS) $(EXTRA_CFLAGS) &> $@
+	-$(CC) $< -S -o /dev/null $(ARCH_FLAG) $(CFLAGS) $(EXTRA_CFLAGS) > $@ 2>&1