util-linux: use meson to build

Compiles faster, is PIC by default, and does not have pkgconfig files
with wrong paths.

Add various fixes to it as it seems cross compilation was never tested.

Signed-off-by: Rosen Penev <rosenp@gmail.com>

package/utils/util-linux/patches/070-meson-fix-isnan-check.patch

@@ -0,0 +1,24 @@
+From 777652585924034deeba98ae3192f26bc32bb661 Mon Sep 17 00:00:00 2001
+From: Rosen Penev <rosenp@gmail.com>
+Date: Fri, 29 Apr 2022 18:19:53 -0700
+Subject: [PATCH 6/7] meson: fix isnan check
+
+musl only has isnan as a macro, not as a function. Handle the former
+case.
+
+Signed-off-by: Rosen Penev <rosenp@gmail.com>
+---
+ meson.build | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/meson.build
++++ b/meson.build
+@@ -622,7 +622,7 @@ rtas_libs = cc.find_library('rtas', requ
+ conf.set('HAVE_LIBRTAS', rtas_libs.found() ? 1 : false)
+ 
+ math_libs = []
+-if not cc.has_function('isnan')
++if not cc.has_header_symbol('math.h', 'isnan')
+   lib = cc.find_library('m', required : true)
+   if (cc.has_function('isnan', dependencies : lib) and
+       cc.has_function('__isnan', dependencies : lib))