regmap: Changes for v4.5

There's no real overall theme to the regmap changes for this release,
it's a collection of individual features.  The main bits are:

 - Support for 64 bit registers, mainly for MMIO use, from Xiubo Li.
 - Support for trigger type configuration for regmap-irq from Laxman
   Dewangan.
 - Use native physical I/O for MMIO register maps to avoid confusion
   with the conversions that readl() and writel() do to little endian on
   big endian systems (with some DT updates to fix some workarounds
   people were doing), code from Simon Arlott.
 - Use a binary search rather than iteraton to improve the runtime
   performance of the rbtree code from Nikesh Oswal.
Merge remote-tracking branches 'regmap/topic/mmio', 'regmap/topic/rbtree' and 'regmap/topic/seq' into regmap-next