qcom-charger: qpnp-smb2: disable vbus-error IRQ trigger

When a Type-C legacy cable is connected to the phone but left unconnected
on the other side an interrupt storm can be observed which is caused by
the vbus-error interrupt trigger. Disable this interrupt trigger.

Change-Id: I5342c58acc83ecff4bf5f8e425de94daa1dabb50
Signed-off-by: Nicholas Troast <ntroast@codeaurora.org>