intel/kblrvp: Update mainboard configuration
Update devicetree.cb as per RVP3 mainboard.
* Enable & configure PCIE ports,
* Enable & configure USB ports,
* Enable SSIC for WWAN,
* Disable unused I2C ports,
* Disable deep S5,
* Disable HDA,
* Update VR config,
Updated gpio.h to disable pull down for SoC power button.
Change-Id: I235a1d44dabef16ded2aaad13aef36ca57f37c8e
Signed-off-by: Naresh G Solanki <naresh.solanki@intel.com>
Reviewed-on: https://review.coreboot.org/17247
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>