nvc0/ir: Initialize Limits members in constructor.
Fix defect reported by Coverity Scan. Uninitialized scalar field (UNINIT_CTOR) uninit_member: Non-static class member min is not initialized in this constructor nor in any functions that it calls. uninit_member: Non-static class member max is not initialized in this constructor nor in any functions that it calls. Signed-off-by: Vinson Lee <vlee@freedesktop.org> Reviewed-by: Karol Herbst <kherbst@redhat.com> Part-of: <!11351>