Package installation required for DTMF Redfish-Service-Validator

Refer: https://github.com/DMTF/Redfish-Service-Validator/blob/master/requirements.txt

Change-Id: Id390becccc20dc44c0a8224dd49447786863d369
Signed-off-by: George Keishing <gkeishin@in.ibm.com>
diff --git a/scripts/build-qemu-robot-docker.sh b/scripts/build-qemu-robot-docker.sh
index dcb305a..0842e22 100755
--- a/scripts/build-qemu-robot-docker.sh
+++ b/scripts/build-qemu-robot-docker.sh
@@ -61,12 +61,15 @@
     libasound2 \
     libfdt1 \
     libpcre3 \
-    openssl
+    openssl \
+    libxml2-dev \
+    libxslt-dev
 
 RUN easy_install \
     tox \
     pip \
-    requests
+    requests \
+    lxml
 
 RUN pip install \
     json2yaml \
@@ -75,7 +78,8 @@
     robotframework-sshlibrary \
     robotframework-scplibrary \
     pysnmp \
-    redfish
+    redfish \
+    beautifulsoup4
 
 RUN wget https://sourceforge.net/projects/ipmitool/files/ipmitool/1.8.18/ipmitool-1.8.18.tar.bz2
 RUN tar xvfj ipmitool-*.tar.bz2