drivers:hv: Move MMIO range picking from hyper_fb to hv_vmbus

drivers:hv: Move MMIO range picking from hyper_fb to hv_vmbus

This patch deletes the logic from hyperv_fb which picked a range of MMIO space
for the frame buffer and adds new logic to hv_vmbus which picks ranges for
child drivers.  The new logic isn't quite the same as the old, as it considers
more possible ranges.

Signed-off-by: Jake Oshins <jakeo@microsoft.com>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit 3546448338e76a52d4f86eb3680cb2934e22d89b)

Orabug: 21886720
Signed-off-by: Jason Luo <zhangqing.luo@oracle.com>