* Our ims.apk doesn't load ims-ext-common.jar, and it's moved to /product
on 10 where PRODUCT_BOOT_JARS doesn't work.
* Create a system copy of the jar and add it to boot classpath to make
it loadable from the apk without extra work,
Change-Id: Ia530a530bd4469e12500410fc5e8ba393de60b18
