internal/rosa: early toybox variant

This is a variant of toybox with unfinished tools enabled, for artifacts that will end up in a dependency loop without them.

Signed-off-by: Ophestra <cat@gensokyo.uk>

internal/rosa/llvm.go

@@ -186,6 +186,7 @@ cp -r /system/include /usr/include && rm -rf /system/include
 			t.Load(Perl),
 			t.Load(Diffutils),
 			t.Load(Bash),
+			t.Load(Gawk),
 			t.Load(Coreutils),
 			t.Load(Findutils),