ARM: make SWP emulation explicit on !CPU_USE_DOMAINS

SWP emulation requires that CPU domain support is disabled in order to
work safely.  Make that explicit in the kernel configuration to prevent
illegal configurations being generated.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

arch/arm/mm/Kconfig

@@ -644,7 +644,7 @@ config ARM_THUMBEE
 
 config SWP_EMULATE
 	bool "Emulate SWP/SWPB instructions"
-	depends on CPU_V7 && !CPU_V6
+	depends on !CPU_USE_DOMAINS && CPU_V7 && !CPU_V6
 	select HAVE_PROC_CPU if PROC_FS
 	default y if SMP
 	help