TODO: usb: typec: tipd: keep default interrupts enabled during probe()

TODO: mainline the interrupt handling for all events that we need,
revert this patch and instead exted this mask accordingly.

Commit 9990f2f6 ("usb: typec: tipd: Enable event interrupts by default")
writes a fixed set of interrupts to TPS_REG_INT_MASK1. In case interrupts
had been enabled by the firmware by default, these get disabled now
which can break use cases. Only append to what is already enabled instead.

Fixes: 9990f2f6 ("usb: typec: tipd: Enable event interrupts by default")
Signed-off-by: Martin Kepplinger <martin.kepplinger@puri.sm>
2 jobs for tipd_interrupts_fix_probe in 95 minutes and 45 seconds (queued for 8 seconds)