Consume the first sample of KernelUidCpuTimeReader

If the system_server crashes, when it starts back up
it will assume that the entries in kernelUidCpuTimeReader
are all fresh and we will end up double counting cpu time
and power.

Bug:29163081
Change-Id: I73e693199c170229af57efd610950e90263ac9bc
1 file changed