diag: Do not close MHI channels when usb is disconnected

Do not close MHI channels when usb is disconnected and a process
is running in memory device mode.

Change-Id: I043fc25542e432a9fa294d4f433945718b2e5878
Signed-off-by: Sreelakshmi Gownipalli <sgownipa@codeaurora.org>
1 file changed