interconnect: qcom: shima: 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: I296b40141d3d844f3011cd704e8c593c8bc0f5e0
Signed-off-by: Raviteja Laggyshetty <quic_rlaggysh@quicinc.com>