Ruslan Bukin 05efeb8430 Initialize interrupt priority to 0 on all sources.
Without this hardware raises an interrupt regardless of any
pending bits set.

This fixes operation on RocketChip and derivatives (e.g. lowRISC).

Approved by:	re (kib)
Sponsored by:	DARPA, AFRL
2018-10-12 15:51:41 +00:00
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