drivers/intel/fsp2_0: Add UPD display support

Add UPD display support:
*  Add a Kconfig value to enable UPD value display
*  Add a routine to display a UPD value
*  Add a call before MemoryInit to display the UPD parameters
*  Add a routine to display the architectural parameters for MemoryInit
*  Add a weak routine to display the other UPD parameters for MemoryInit
*  Add a call before SiliconInit to display the UPD parameters
*  Add a weak routine to display the UPD parameters for SiliconInit

TEST=Build and run on Galileo Gen2.

Change-Id: I35fb8410c0bccf217b32af4b8bbe5ad6671f81f6
Signed-off-by: Lee Leahy <leroy.p.leahy@intel.com>
Reviewed-on: https://review.coreboot.org/15847
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
5 files changed