package/libvirt: needs xsltproc

libvirt needs xsltproc since its addition in commit
ccfc90e1010e42e6529afae3a5ea8bf7226dabc1:

../output-1/build/libvirt-7.4.0/meson.build:807:2: ERROR: Program 'xsltproc' not found

Fixes:
 - http://autobuild.buildroot.org/results/0341be10c4c36f37b5b6486428e55170a42b7692

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>

package/libvirt/libvirt.mk

@@ -10,8 +10,18 @@ LIBVIRT_SOURCE = libvirt-$(LIBVIRT_VERSION).tar.xz
 LIBVIRT_LICENSE = LGPL-2.1+
 LIBVIRT_LICENSE_FILES = COPYING
 LIBVIRT_CPE_ID_VENDOR = redhat
-LIBVIRT_DEPENDENCIES = host-nfs-utils host-pkgconf host-python-docutils \
-	gnutls libglib2 libpciaccess libtirpc libxml2 udev zlib
+LIBVIRT_DEPENDENCIES = \
+	host-libxslt \
+	host-nfs-utils \
+	host-pkgconf \
+	host-python-docutils \
+	gnutls \
+	libglib2 \
+	libpciaccess \
+	libtirpc \
+	libxml2 \
+	udev \
+	zlib
 
 LIBVIRT_CONF_ENV += \
 	CFLAGS="$(TARGET_CFLAGS) `$(PKG_CONFIG_HOST_BINARY) --cflags libtirpc`" \