Kconfig: Remove BOARD_ID_MANUAL option

The BOARD_ID_MANUAL and BOARD_ID_STRING options were introduced for the
Urara board which is now long dead, and have never been used anywhere
else. They were trying to do something that we usually handle with a
separate SKU ID these days, whereas BOARD_ID is supposed to be reserved
for different revisions of the same board/SKU. Get rid of it to make
further refactoring of other options easier.

Also shove some stuff back into the Urara mainboard that should've never
crept into generic headers.

Change-Id: I4e7018066eadb38bced96d8eca2ffd4f0dd17110
Signed-off-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: https://review.coreboot.org/22694
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/Kconfig

@@ -236,14 +236,6 @@ config UPDATE_IMAGE
 
 	  If unsure, select 'N'
 
-config BOARD_ID_STRING
-	string "Board ID"
-	# Default value set at the end of the file
-	depends on BOARD_ID_MANUAL
-	help
-	  This string is placed in the 'board_id' CBFS file for indicating
-	  board type.
-
 config RAM_CODE_SUPPORT
 	bool
 	help
@@ -1222,16 +1214,6 @@ config BOARD_ID_AUTO
 	  Mainboards that can read a board ID from the hardware straps
 	  (ie. GPIO) select this configuration option.
 
-config BOARD_ID_MANUAL
-	bool
-	default n
-	depends on !BOARD_ID_AUTO
-	help
-	  If you want to maintain a board ID, but the hardware does not
-	  have straps to automatically determine the ID, you can say Y
-	  here and add a file named 'board_id' to CBFS. If you don't know
-	  what this is about, say N.
-
 config BOOTBLOCK_CUSTOM
 	# To be selected by arch, SoC or mainboard if it does not want use the normal
 	# src/lib/bootblock.c#main() C entry point.
@@ -1256,10 +1238,6 @@ config COMPRESS_PRERAM_STAGES
 config INCLUDE_CONFIG_FILE
 	default y
 
-config BOARD_ID_STRING
-	default "(none)"
-	depends on BOARD_ID_MANUAL
-
 config BOOTSPLASH_FILE
 	depends on BOOTSPLASH_IMAGE
 	default "bootsplash.jpg"