[x86] Add pciutils project as libpci is required by powertop on x86

This commit add pciutils to the default manifest which fulfills
powertop's libpci requirement when the TARGET_ARCH=x86

The project can be forked from the github repo

repository : https://github.com/trevd/android_external_pciutils.git
branch: cm-10.2

Change-Id: Ib8ff3e5927f5221a842afc0dcf8ef40eac42290a
diff --git a/default.xml b/default.xml
index f275d0f..202e4a3 100644
--- a/default.xml
+++ b/default.xml
@@ -187,6 +187,7 @@
   <project path="external/openssl" name="CyanogenMod/android_external_openssl" groups="pdk" />
   <project path="external/openvpn" name="CyanogenMod/android_external_openvpn" />
   <project path="external/oprofile" name="CyanogenMod/android_external_oprofile" />
+  <project path="external/pciutils" name="CyanogenMod/android_external_pciutils" />
   <project path="external/pigz" name="CyanogenMod/android_external_pigz" />
   <project path="external/ping" name="CyanogenMod/android_external_ping" />
   <project path="external/ping6" name="CyanogenMod/android_external_ping6" />