Add libfontconfig1-dev as openjdk dep

Test: built openjdk locally
Bug: n/a
Change-Id: I6c849ca7b24ee62f503403261edf9c99129045fc
diff --git a/download-deps.sh b/download-deps.sh
index a0f546d..c75ed36 100755
--- a/download-deps.sh
+++ b/download-deps.sh
@@ -7,6 +7,7 @@
   libc6-dev \
   libcups2 \
   libcups2-dev \
+  libfontconfig1-dev \
   libfreetype6 \
   libfreetype6-dev \
   libgcc-4.8-dev \