extras/tools: meson: create bin folder if needed

Fixes the "build" of meson that could randomly fail when no target
created the folder already.

(cherry picked from commit 1649e12158)

Signed-off-by: Steve Lhomme <robux4@ycbcr.xyz>

extras/tools/tools.mak

@@ -392,6 +392,7 @@ meson: meson-$(MESON_VERSION).tar.gz
 	$(MOVE)
 
 .buildmeson: meson
+	mkdir -p $(PREFIX)/bin
 	printf "#!/bin/sh\n\npython3 $(abspath .)/meson/meson.py \"\$$@\"\n" > $(PREFIX)/bin/meson
 	chmod +x $(PREFIX)/bin/meson
 	touch $@