ARM: dts: msm: enable SPMI write corruption workaround for SDM845

Enable the SPMI PMIC arbiter AHB bus workaround in order to
avoid potential SPMI write transaction corruption when a PMIC
interrupt is received between two SPMI write transactions.

Change-Id: Ic3c20e1813139407949dfa23c25eed323ac24384
Signed-off-by: David Collins <collinsd@codeaurora.org>