um: Avoid redefining ARCH_HAS_CACHE_LINE_SIZE

There is a generic ARCH_HAS_CACHE_LINE_SIZE option introduced by
commit c2280be ("mm: generalize ARCH_HAS_CACHE_LINE_SIZE")
in mm/Kconfig. Select that instead.

Signed-off-by: Tiwei Bie <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Johannes Berg <[email protected]>

Author: btw616

arch/um/Kconfig

@@ -6,6 +6,7 @@ config UML
 	bool
 	default y
 	select ARCH_WANTS_DYNAMIC_TASK_STRUCT
+	select ARCH_HAS_CACHE_LINE_SIZE
 	select ARCH_HAS_CPU_FINALIZE_INIT
 	select ARCH_HAS_FORTIFY_SOURCE
 	select ARCH_HAS_GCOV_PROFILE_ALL
@@ -83,9 +84,6 @@ config NR_CPUS
 	range 1 1
 	default 1
 
-config ARCH_HAS_CACHE_LINE_SIZE
-	def_bool y
-
 source "arch/$(HEADER_ARCH)/um/Kconfig"
 
 config MAY_HAVE_RUNTIME_DEPS