soc/intel/{adl,mtl,tgl}: change selection for DEFAULT_SOFTWARE_CONNECTION_MANAGER

Needs to be selected for ChromeOS mainboards even for non-ChromeOS
builds, else Thunderbolt/USB4 doesn't work under Windows (and likely
Linux as well).

TEST=build/boot Windows on drobit/banshee, verify TB functional

Change-Id: Iee3f99840f0c6cc384d9fdef6dff55bcbfc0380f
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/72140
Reviewed-by: Subrata Banik <subratabanik@google.com>
Reviewed-by: Sean Rhodes <sean@starlabs.systems>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/src/soc/intel/alderlake/Kconfig b/src/soc/intel/alderlake/Kconfig
index 0561d74..a200121 100644
--- a/src/soc/intel/alderlake/Kconfig
+++ b/src/soc/intel/alderlake/Kconfig
@@ -54,6 +54,7 @@
 	select CPU_INTEL_FIRMWARE_INTERFACE_TABLE
 	select CPU_SUPPORTS_INTEL_TME
 	select CPU_SUPPORTS_PM_TIMER_EMULATION
+	select DEFAULT_SOFTWARE_CONNECTION_MANAGER if MAINBOARD_HAS_CHROMEOS
 	select DISPLAY_FSP_VERSION_INFO
 	select DRIVERS_USB_ACPI
 	select EDK2_CPU_TIMER_LIB if PAYLOAD_EDK2
@@ -438,9 +439,6 @@
 	help
 	  Enables ACPI entry to provide silicon type information to IPU kernel driver.
 
-config CHROMEOS
-	select DEFAULT_SOFTWARE_CONNECTION_MANAGER
-
 config ALDERLAKE_ENABLE_SOC_WORKAROUND
 	bool
 	default y