cups: Turn gnutls into a packageconfig knob

Disable it by default

(From OE-Core rev: 438d00af14a0cc108a25b36bf37502f1383865be)

Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-extended/cups/cups.inc

@@ -6,7 +6,7 @@ document types."
 HOMEPAGE = "https://www.cups.org/"
 SECTION = "console/utils"
 LICENSE = "Apache-2.0"
-DEPENDS = "gnutls libpng jpeg dbus zlib libusb1"
+DEPENDS = "libpng jpeg dbus zlib libusb1"
 
 SRC_URI = "https://github.com/apple/cups/releases/download/v${PV}/${BP}-source.tar.gz \
            file://0001-use-echo-only-in-init.patch \
@@ -43,12 +43,12 @@ PACKAGECONFIG ??= "${@bb.utils.contains('DISTRO_FEATURES', 'zeroconf', 'avahi',
                    ${@bb.utils.filter('DISTRO_FEATURES', 'pam systemd', d)}"
 PACKAGECONFIG[avahi] = "--enable-avahi,--disable-avahi,avahi"
 PACKAGECONFIG[acl] = "--enable-acl,--disable-acl,acl"
+PACKAGECONFIG[gnutls] = "--enable-gnutls,--disable-gnutls,gnutls"
 PACKAGECONFIG[pam] = "--enable-pam --with-pam-module=unix, --disable-pam, libpam"
 PACKAGECONFIG[systemd] = "--with-systemd=${systemd_system_unitdir},--without-systemd,systemd"
 PACKAGECONFIG[xinetd] = "--with-xinetd=${sysconfdir}/xinetd.d,--without-xinetd,xinetd"
 
 EXTRA_OECONF = " \
-               --enable-gnutls \
                --enable-dbus \
                --enable-browsing \
                --disable-gssapi \