ARM: dts: msm: Remove secure ICE interrupt from ICE nodes on 8996

8996 does not require HLOS to register for secure interrupt. This
was needed for older chips. Removing secure interrupts from ICE
nodes as it is not needed anymore.

Change-Id: I573955611e8ec6ad402def6f596616c39febb91e
Signed-off-by: Dinesh K Garg <dineshg@codeaurora.org>