spmi: pmic-arb: handle spurious interrupt

Call handle_bad_irq() when the summary interrupt is fired spuriously.

Signed-off-by: Fenglin Wu <quic_fenglinw@quicinc.com>
Link: https://lore.kernel.org/r/1655004286-11493-3-git-send-email-quic_fenglinw@quicinc.com


Signed-off-by: Stephen Boyd <sboyd@kernel.org>