arm64: Kconfig.platforms: remove useless select for ARCH_K3

After patch done on TI_MESSAGE_MANAGER[1] and TI_SCI_PROTOCOL[2] driver
select on ARCH_K3 are not needed anymore.
Select MAILBOX by default is not needed anymore[3],
PM_GENERIC_DOMAIN if PM was enabled by default so not needed.

Remove it and give possibility to enable this driver in modules.

[1] https://lore.kernel.org/all/[email protected]/
[2] https://lore.kernel.org/all/[email protected]/
[3] https://lore.kernel.org/all/20250507135213.g6li6ufp3cosxoys@stinging/

Signed-off-by: Guillaume La Roque <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Vignesh Raghavendra <[email protected]>

Author: glaroque

arch/arm64/Kconfig.platforms

@@ -135,11 +135,7 @@ config ARCH_SPARX5
 
 config ARCH_K3
 	bool "Texas Instruments Inc. K3 multicore SoC architecture"
-	select PM_GENERIC_DOMAINS if PM
-	select MAILBOX
 	select SOC_TI
-	select TI_MESSAGE_MANAGER
-	select TI_SCI_PROTOCOL
 	select TI_K3_SOCINFO
 	help
 	  This enables support for Texas Instruments' K3 multicore SoC