linux-yocto/4.1: device property : Backport device property patches

linux-yocto/4.1: device property : Backport device property patches

Integrating the following mainline commits for Apollo Lake/Broxton support:

  568c4910b938 device property: always check for fwnode type
  bd2ac1821e91 device property: fallback to pset when gettng one string
  44a76bd61eed ACPI / property: Extend fwnode_property_* to data-only subnodes
  76f301877fab ACPI / property: Add support for data-only subnodes
  95010db1e8f9 ACPI / property: Add routine for extraction of _DSD properties
  3d257abeae4d device property: Return -ENXIO if there is no suitable FW interface
  15f7db3cd1d0 device property: attach 'else if' to the proper 'if'
  effb3f07966e ACPI / OF: Rename of_node() and acpi_node() to to_of_node() and to_acpi_node()
  30aa0ae9ebf0 ACPI / scan: Parse _CCA and setup device coherency
  c8b4218d1523 ACPI / property: Define a symbol for PRP0001
  3d20c5d27e99 ACPI / property: Refine consistency check for PRP0001
  f753cbe35057 device property: avoid allocations of 0 length
  6985a3d56431 device property: the secondary fwnode needs to depend on the primary
  6c23f8de37ff device property: add spaces to PROPERTY_ENTRY_STRING macro
  216b251c170c include/linux/property.h: fix build issues with gcc-4.4.4
  c579da0b4812 device property: Take a copy of the property set
  e0c7ce6ec1eb device property: Fallback to secondary fwnode if primary misses the property
  a657577af2af device property: improve readability of macros
  599f18f62daf device property: Add fwnode_property_match_string()
  03599b274370 device property: helper macros for property entry creation
  5247e6af02d6 device property: keep single value inplace
  c12af01cf0d4 device property: refactor built-in properties support
  1390c21efa11 device property: rename helper functions

(From OE-Core rev: cd4288126b01903fe69714eda772cd4f725ad43a)

Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>