Drivers: hv: vmbus: Use get_cpu() to get the current CPU

Replace calls for smp_processor_id() to get_cpu() to get the CPU ID of
the current CPU. In these instances, there is no correctness issue with
regards to preemption, we just need the current CPU ID.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --cc drivers/hv/channel_mgmt.c
Simple merge

diff --cc drivers/hv/connection.c
Simple merge