kasan/lto: Turn off lto by default anyway

Of course, there is an error here, that is, the conditional judgment of
  ifeq ($(CONFIG_LTO_NONE),n)
    CFLAGS += -fno-lto
  endif
 is wrong, it should be judged as "ifneq ($(CONFIG_LTO_NONE),)"

Signed-off-by: wangmingrong1 <wangmingrong1@xiaomi.com>

mm/kasan/CMakeLists.txt

@@ -22,12 +22,9 @@
 set(SRCS hook.c)
 
 if(CONFIG_MM_KASAN)
+  list(APPEND FLAGS ${NO_LTO})
   list(APPEND FLAGS -fno-builtin)
   list(APPEND FLAGS -fno-sanitize=kernel-address)
-
-  if(CONFIG_LTO_NONE)
-    list(APPEND FLAGS -fno-lto)
-  endif()
 endif()
 
 target_sources(mm PRIVATE ${SRCS})

mm/kasan/Make.defs

@@ -23,12 +23,9 @@
 CSRCS += hook.c
 
 ifeq ($(CONFIG_MM_KASAN),y)
+  CFLAGS += -fno-lto
   CFLAGS += -fno-builtin
   CFLAGS += -fno-sanitize=kernel-address
-
-  ifeq ($(CONFIG_LTO_NONE),n)
-    CFLAGS += -fno-lto
-  endif
 endif
 
 # Add the core heap directory to the build