package/util-linux: always disable man pages and translations

When the host system has asciidoctor and po4a/poman installed,
util-linux detect them and automatically enable manual pages and
their translations. This can significantly increase the package
build time (in my case, from 20s to 1m50s). See upstream
commit [1] and [2].

Since manual pages are not needed in Buildroot, this commit adds in
_CONF_OPTS for host host and target variants the options to always
disable the detection of those programs (--disable-asciidoc
--disable-poman). This will always disable the generation of manual
pages.

Note: Buildroot attempts to globally disable documentation for
autotools packages by passing various --disable-docs configure
options (see [3]), but those are not recognized by util-linux.

This commit also reorder the options for UTIL_LINUX_CONF_OPTS.

[1] 9acfc349e0
[2] 236421a491
[3] https://gitlab.com/buildroot.org/buildroot/-/blob/2025.11/package/pkg-autotools.mk#L184-186

Signed-off-by: Julien Olivain <ju.o@free.fr>
Signed-off-by: Romain Naour <romain.naour@smile.fr>
(cherry picked from commit dd81c1766e)
Signed-off-by: Thomas Perale <thomas.perale@mind.be>

package/util-linux/util-linux.mk

@@ -46,8 +46,10 @@ UTIL_LINUX_DEPENDENCIES = \
 # system is not Y2038 compliant. util-linux will support year2038 if
 # the system is compliant even with this option passed
 UTIL_LINUX_CONF_OPTS += \
-	--disable-rpath \
+	--disable-asciidoc \
 	--disable-makeinstall-chown \
+	--disable-poman \
+	--disable-rpath \
 	--disable-year2038
 
 UTIL_LINUX_LINK_LIBS = $(TARGET_NLS_LIBS)
@@ -56,6 +58,8 @@ HOST_UTIL_LINUX_DEPENDENCIES = host-pkgconf
 
 # We also don't want the host-python dependency
 HOST_UTIL_LINUX_CONF_OPTS = \
+	--disable-asciidoc \
+	--disable-poman \
 	--without-systemd \
 	--with-systemdsystemunitdir=no \
 	--without-python