ARM: dts: msm: fix IPA hardware mode for sdm670

Set IPA HW mode to 0 (NORMAL) for sdm670.
HW mode was set incorrectly to VIRTUAL mode
which prevented msm_bus client from
getting initialized.

Change-Id: Idb198af839b264c8ad5b575ee5212f244ece3975
Acked-by: Pooja Kumari <kumarip@qti.qualcomm.com>
Signed-off-by: Mohammed Javid <mjavid@codeaurora.org>