MFC r262409, r262411, r262413, r262420, r262426, r262427, r262440, r262456,
    r262482, r262483, r262531,

  Move the declaration for mpentry() into a header file instead of pasting
  it into a bunch of different .c files.

  If the L2 cache type is PIPT, pass a physical address for a flush.

  Actually set the proper bit to indicate TTB shared memory.

  Add a new cache maintenance function, idcache_inv_all, to the table, and
  implementations for each of the chips we support.

  Invalidate caches immediately upon entry to init_secondary().  Also set
  the Bufferable bit in the PDE entries of the secondary processor startup
  pagetables.

  Add the bits needed to run SMP on imx6.

  Invalidate the SCU cache tag ram on all 4 cores, not just 1-3.

  Minor tweaks to the imx GPT timer

  Vybrid enhancements...
  - Pin configuration is a complete iomux register now and includes
    drive strength, pull mode, mux mode, speed, etc.
  - Add i2c devices to the tree
  - Add IPG clock
  - Add support for Quartz Module.
  - Pin configuration is a complete iomux register now and includes
    drive strength, pull mode, mux mode, speed, etc.
  - Add i2c devices to the tree
  - Add IPG clock