powerpc: remove dead config options for MPC85xx platform support

Commit 384e338 ("powerpc: drop MPC8540_ADS and MPC8560_ADS platform
support") and commit b751ed0 ("powerpc: drop MPC85xx_CDS platform
support") removes the platform support for MPC8540_ADS, MPC8560_ADS and
MPC85xx_CDS in the source tree, but misses to remove the config options in
the Kconfig file. Hence, these three config options are without any effect
since then.

Drop these three dead config options.

Fixes: 384e338 ("powerpc: drop MPC8540_ADS and MPC8560_ADS platform support")
Fixes: b751ed0 ("powerpc: drop MPC85xx_CDS platform support")
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@redhat.com>
Reviewed-by: Ritesh Harjani (IBM) <ritesh.list@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://patch.msgid.link/20240927095203.392365-1-lukas.bulwahn@redhat.com

Author: bulwahn

arch/powerpc/platforms/85xx/Kconfig

@@ -40,27 +40,6 @@ config BSC9132_QDS
 	  and dual StarCore SC3850 DSP cores.
 	  Manufacturer : Freescale Semiconductor, Inc
 
-config MPC8540_ADS
-	bool "Freescale MPC8540 ADS"
-	select DEFAULT_UIMAGE
-	help
-	  This option enables support for the MPC 8540 ADS board
-
-config MPC8560_ADS
-	bool "Freescale MPC8560 ADS"
-	select DEFAULT_UIMAGE
-	select CPM2
-	help
-	  This option enables support for the MPC 8560 ADS board
-
-config MPC85xx_CDS
-	bool "Freescale MPC85xx CDS"
-	select DEFAULT_UIMAGE
-	select PPC_I8259
-	select HAVE_RAPIDIO
-	help
-	  This option enables support for the MPC85xx CDS board
-
 config MPC85xx_MDS
 	bool "Freescale MPC8568 MDS / MPC8569 MDS / P1021 MDS"
 	select DEFAULT_UIMAGE