tools: add missing optional packages in debian/rpm setup.

Change-Id: Ie84f8d6e9ebdff0b760bc71ec227358ce23f427d
Reviewed-on: https://code.wireshark.org/review/27307
Reviewed-by: Alexis La Goutte <alexis.lagoutte@gmail.com>
Reviewed-by: Dario Lombardo <lomato@gmail.com>

tools/debian-setup.sh

@@ -68,7 +68,9 @@ ADDITIONAL_LIST="libnl-3-dev \
 	libxml2-dev \
 	git \
 	libjson-glib-dev \
-	ninja-build"
+	ninja-build \
+	doxygen \
+	xsltproc"
 
 # Adds package $2 to list variable $1 if the package is found
 add_package() {

tools/rpm_setup.sh

@@ -68,7 +68,10 @@ ADDITIONAL_LIST="libnl3-devel \
 	snappy-devel \
 	lz4 \
 	json-glib-devel \
-	ninja-build"
+	ninja-build \
+	doxygen \
+	libxml2-devel \
+	spandsp-devel"
 
 # Guess which package manager we will use
 PM=`which zypper 2> /dev/null ||