perl, texinfo-7: provide a secondaryArch package (#9202)

* perl, texinfo-7: provide a secondaryArch package

LilyPond requires a newer texinfo than the 6.1 that is available for x86_gcc2.
Provide a secondary architecture version of texinfo 7 to fix that.

Perl (secondary) is required for texinfo.

* texinfo-7: remove libtool files

* texinfo-7: add conflict between primary and secondary packages

They largely contain the same data files and documentation.

media-sound/lilypond/lilypond-2.24.2.recipe

@@ -103,7 +103,7 @@ BUILD_REQUIRES="
 	tex:hyphen_portuguese
 	"
 BUILD_PREREQUIRES="
-#	cmd:awk
+	cmd:awk
 	cmd:bison
 	cmd:convert
 	cmd:dblatex
@@ -115,16 +115,15 @@ BUILD_PREREQUIRES="
 	cmd:gcc$secondaryArchSuffix
 	cmd:kpsewhich
 	cmd:make
-	cmd:mawk # required by texindex
 	cmd:mf
 	cmd:mpost
-	cmd:perl
+	cmd:perl$secondaryArchSuffix
 	cmd:pkg_config$secondaryArchSuffix
 	cmd:rsync
 	cmd:t1asm
 	cmd:tar
 	cmd:texi2html
-	cmd:texindex
+	cmd:texindex$secondaryArchSuffix
 	cmd:tidy
 	cmd:xelatex
 	cmd:zip