interconnect: qcom: direwolf: fix UAF under remove function

UAF is observed while unloading the interconnect driver.
Interconnect is core to the system and should not
be unloaded once it is probed. Marking the driver as
permanent by removing the module_exit function.

Change-Id: I7bd39e3269409527cc55e5a7ceaddedb70324612
Signed-off-by: Raviteja Laggyshetty <quic_rlaggysh@quicinc.com>