ARM: dts: msm: Enable Apps shutdown feature in IPA driver for 8996HQX

In order to support GVM restart functionality where apps VM can alone
shutdown, IPA apps driver need to reset IPA HW. So make a change to
enable the DT node to support apps shutdown feature.

Change-Id: I6076d4914a62004b06f5b555e64e22ed49e2551f
Signed-off-by: Mohammed Javid <mjavid@codeaurora.org>