qbe: Update qbe to use the improved Makefile - scc

commit 8e8d93c0d70db35b5dbed8ea0aba54fb557bd15b
parent 66d45bd97edc7c35b3b7e7dc7ef23f60c5d863ab
Author: Roberto E. Vargas Caballero <k0ga@shike2.com>
Date:   Tue, 16 Nov 2021 22:03:15 +0100

qbe: Update qbe to use the improved Makefile

	scc simple c99 compiler
	git clone git://git.simple-cc.org/scc
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