power: smb1355-charger: Vote to keep the IRQs disabled initially

Add an initial vote to keep the IRQs disabled to avoid an
unbalanced IRQ.

Change-Id: Iaa19d25d0ee94f32928fe937c16263e3fffddd92
Signed-off-by: Anirudh Ghayal <aghayal@codeaurora.org>