[RFC][PATCH 2/3] export time until next timer interrupt using NOHZ

This patch exposes information about the time remaining until the next timer interrupt expires by utilizing the dynticks infrastructure. It also modifies the main idle loop to allow dynticks to handle non-interrupt break events (e.g. DMA). Finally, it exposes sleep ticks information to external

[RFC][PATCH 2/3] export time until next timer interrupt using NOHZ

This patch exposes information about the time remaining until the next timer interrupt expires by utilizing the dynticks infrastructure. It also modifies the main idle loop to allow dynticks to handle non-interrupt break events (e.g. DMA). Finally, it exposes sleep ticks information to external