Switch to protobuf lite

Fixes: 36272398

Protobuf lite isn't just smaller, it also doesn't
have the problematic DescriptorPool at all. So no
need to switch this to a shared library.

Test: hwui_unit_test passes and doesn't crash. CTS incident tests pass
as well

Change-Id: I2693ba2c47af89a5c561c4f63cc7e1f509ebbbec