gpu: host1x: Syncpoint interrupt sharding

Support sharded syncpoint interrupts on Tegra234+. This feature
allows specifying one of eight interrupt lines for each syncpoint
to lower processing latency of syncpoint threshold
interrupts.

Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230901114008.672433-1-cyndis@kapsi.fi