Kconfig: Remove unnecessary choice names

The only reason to use a named choice statement is if you plan on
having the choice statement in multiple places. Since none of these
are used in multiple places, we can get rid of the names.

Signed-off-by: Martin Roth <martin@coreboot.org>
Change-Id: Ie5f84e9dc38050234976bd193ac5fbf649e564f4
Reviewed-on: https://review.coreboot.org/c/coreboot/+/43765
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>

src/mainboard/amd/mandolin/Kconfig

@@ -70,7 +70,7 @@ config MANDOLIN_MCHP_FW_FILE
 	default "3rdparty/blobs/mainboard/amd/mandolin/EC_mandolin.bin" if BOARD_AMD_MANDOLIN
 
 if !AMD_LPC_DEBUG_CARD
-choice MANDOLIN_LPC_IOMUX
+choice
 	prompt "State of IOMux for LPC/eMMC signals"
 	default MANDOLIN_IOMUX_USE_EMMC
 	help

src/mainboard/amd/padmelon/Kconfig

@@ -28,7 +28,7 @@ config MAINBOARD_PART_NUMBER
 	string
 	default "Padmelon"
 
-choice PADMELON_SOC
+choice
 	prompt "SOC used in padmelon board"
 	default PADMELON_MERLIN_FALCON
 

src/soc/amd/picasso/Kconfig

@@ -271,7 +271,7 @@ config PICASSO_CONSOLE_UART
 	  2: 0xfedc3000
 	  3: 0xfedcf000
 
-choice PICASSO_UART_CLOCK_SOURCE
+choice
 	prompt "UART Frequency"
 	depends on PICASSO_CONSOLE_UART
 	default PICASSO_UART_48MZ