kasan: update log messages

We decided to use KASAN as the short name of the tool and
KernelAddressSanitizer as the full one.  Update log messages according to
that.

Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Konstantin Serebryany <kcc@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/mm/kasan/report.c b/mm/kasan/report.c
index be53a8f..ae6bd36 100644
--- a/mm/kasan/report.c
+++ b/mm/kasan/report.c
@@ -91,7 +91,7 @@
 		break;
 	}
 
-	pr_err("BUG: KASan: %s in %pS at addr %p\n",
+	pr_err("BUG: KASAN: %s in %pS at addr %p\n",
 		bug_type, (void *)info->ip,
 		info->access_addr);
 	pr_err("%s of size %zu by task %s/%d\n",
@@ -224,7 +224,7 @@
 			bug_type = "user-memory-access";
 		else
 			bug_type = "wild-memory-access";
-		pr_err("BUG: KASan: %s on address %p\n",
+		pr_err("BUG: KASAN: %s on address %p\n",
 			bug_type, info->access_addr);
 		pr_err("%s of size %zu by task %s/%d\n",
 			info->is_write ? "Write" : "Read",