mm/kasan: Kasan global support setting alignment length

1. Similar to asan, supports single byte out of bounds detection
2. Fix the script to address the issue of not supporting the big end

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

mm/Kconfig

@@ -341,6 +341,14 @@ config MM_KASAN_GLOBAL
 		KEEP ( *(. data. rel. local.. LASAN0))
 		}", used to extract data generated by the compiler
 
+if MM_KASAN_GLOBAL
+
+config MM_KASAN_GLOBAL_ALIGN
+	int "KASan global alignment"
+	default 32
+
+endif # MM_KASAN_GLOBAL
+
 config MM_KASAN_DISABLE_READ_PANIC
 	bool "Disable panic on kasan read error"
 	default n