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/050-meson-fix-environ-search.patch

@@ -0,0 +1,23 @@
+From 1e9e2b9fe365cc4a0025d44dc0a9c54bfffe9058 Mon Sep 17 00:00:00 2001
+From: Rosen Penev <rosenp@gmail.com>
+Date: Fri, 29 Apr 2022 18:16:17 -0700
+Subject: [PATCH 4/7] meson: fix environ search
+
+musl has it defined in unistd.h and hidden behind _GNU_SOURCE.
+
+Signed-off-by: Rosen Penev <rosenp@gmail.com>
+---
+ meson.build | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/meson.build
++++ b/meson.build
+@@ -382,7 +382,7 @@ conf.set10('HAVE_DECL_CPU_ALLOC', have)
+ have_cpu_set_t = cc.sizeof('cpu_set_t', prefix : '#define _GNU_SOURCE\n#include <sched.h>') > 0
+ conf.set('HAVE_CPU_SET_T', have_cpu_set_t ? 1 : false)
+ 
+-have = cc.has_header_symbol('stdlib.h', 'environ')
++have = cc.has_header_symbol('unistd.h', 'environ', prefix : '#define _GNU_SOURCE')
+ conf.set10('HAVE_ENVIRON_DECL', have)
+ 
+ have = cc.has_header_symbol('signal.h', 'sighandler_t')