Disable screen blanking and powersave on VT2 for factory

BUG=chrome-os-partner:2950
TEST=manual,
1. create factory image place on USB stick
2. boot to 'dev' screen hit ctrl-U
3. run factory flow ( wouldn't complete on my system )
4. switch to VT2 and make sure screen stays on >10min
5. switch to VT1 (factory test) make sure still operational
6. switch to VT2, and sudo stop factory
7. make sure VT2 screen stays on >10min

Change-Id: Id01a7938bfd4e2abbddfd0ff6856649cc853b737

Review URL: http://codereview.chromium.org/6838023
diff --git a/factory.conf b/factory.conf
index 1784cba..d953f36 100644
--- a/factory.conf
+++ b/factory.conf
@@ -9,6 +9,10 @@
 stop on starting halt or starting reboot
 
 script
+  # disable screen blanking & VESA powerdown for VT2
+  echo -e "\033[9;0]" > /dev/console
+  echo -e "\033[14;0]" > /dev/console
+
   modprobe i2c-dev
   cd /usr/local/autotest
   eval $(./site_tests/suite_Factory/startx.sh)