msm: ipa: Enable qmi send request to remove last connection

Change the if condition to be inclusive to allow remove_offload
ioctl to send the rmv_offload_request through qmi on the last
connection.

Change-Id: I6eec7799fd1a76ab168bc588b3e9c74dbfd215fd
Signed-off-by: Michael Adisumarta <madisuma@codeaurora.org>