InCallUI: Fix build error

Not including any resource means that the framework-res dependency
is not noted in the build system and sometimes (depending on the
timing) leads to build errors such as

http://jenkins.cyanogenmod.org/job/submission-test/7843/consoleText

Avoid the error by linking against a historical SDK and thus not
depending on framework-res.

Change-Id: I99b2ded018e0b0858bc1c3e31d236fc51d3eec2e
Keep InCallUI in memory (1/3)[DO NOT MERGE]

In lower end devices, startup of the InCallUI process can take
up to 10 seconds when the device is busy, which prevents the user
from taking the core. Keep the process in memory like previous
versions where they are a part of Phone.apk.

This converts InCallUI into a dummy apk with the persistent
attribute set to true and allows the activity from Dialer.apk,
which uses the com.android.incallui process to be loaded into the
persistent process.

Change-Id: Idfb7fa760eacc8d6e46d50ce682fb06c0acfc8f4