add libxml2-dev to fontconfig dev depends (#1901)

packages/fontconfig/build.sh

@@ -1,11 +1,11 @@
 TERMUX_PKG_HOMEPAGE=https://www.freedesktop.org/wiki/Software/fontconfig/
 TERMUX_PKG_DESCRIPTION="Library for configuring and customizing font access"
 TERMUX_PKG_VERSION=2.12.4
-TERMUX_PKG_REVISION=1
+TERMUX_PKG_REVISION=2
 TERMUX_PKG_SHA256=668293fcc4b3c59765cdee5cee05941091c0879edcc24dfec5455ef83912e45c
 TERMUX_PKG_SRCURL=https://www.freedesktop.org/software/fontconfig/release/fontconfig-${TERMUX_PKG_VERSION}.tar.bz2
 TERMUX_PKG_DEPENDS="freetype, libxml2, libpng"
-TERMUX_PKG_DEVPACKAGE_DEPENDS="freetype-dev"
+TERMUX_PKG_DEVPACKAGE_DEPENDS="freetype-dev, libxml2-dev"
 # TERMUX_PKG_BUILD_IN_SRC=yes
 TERMUX_PKG_EXTRA_CONFIGURE_ARGS="
 --enable-libxml2