[llvm] [AArch64][SME2] Add ZT0 attributes to SMEAttrs (PR #77607)

[Sander de Smalen via llvm-commits]

================
@@ -111,36 +80,36 @@ TEST(SMEAttributes, Constructors) {
 
   EXPECT_DEBUG_DEATH(SA(SA::ZT0_New | SA::ZT0_In),
                      "ZT0_New, ZT0_In, ZT0_Out, ZT0_InOut and ZT0_Preserved "
-                     "are all mutually exclusive");
+                     "are all \" \"mutually exclusive");
----------------
sdesmalen-arm wrote:

Did something go wrong here with the escapes/formatting? :) 

https://github.com/llvm/llvm-project/pull/77607