drivers/intel/fsp2_0: Move Debug options to "Debugging"

Change-Id: I8e07c8186baf3d8e91b77c5afb731d26a1abfbaf
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/36165
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>

src/Kconfig

@@ -740,6 +740,9 @@ menu "Debugging"
 comment "CPU Debug Settings"
 source "src/cpu/*/Kconfig.debug_cpu"
 
+comment "BLOB Debug Settings"
+source "src/drivers/intel/fsp*/Kconfig.debug_blob"
+
 comment "General Debug Settings"
 
 # TODO: Better help text and detailed instructions.