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/020-meson-fix-compilation-without-systemd.patch

@@ -0,0 +1,22 @@
+From 38b15ca2dc4ca32bbe4a2449e1c7b645e4577840 Mon Sep 17 00:00:00 2001
+From: Rosen Penev <rosenp@gmail.com>
+Date: Fri, 29 Apr 2022 16:53:43 -0700
+Subject: [PATCH 1/7] meson: fix compilation without systemd
+
+systemdsystemunitdir is used elsewhere.
+
+Signed-off-by: Rosen Penev <rosenp@gmail.com>
+---
+ meson.build | 1 +
+ 1 file changed, 1 insertion(+)
+
+--- a/meson.build
++++ b/meson.build
+@@ -720,6 +720,7 @@ if fs_search_path_extra != ''
+ endif
+ conf.set_quoted('FS_SEARCH_PATH', fs_search_path)
+ 
++systemdsystemunitdir = ''
+ if systemd.found()
+   systemdsystemunitdir = systemd.get_pkgconfig_variable('systemdsystemunitdir')
+ endif