[AArch64][MC] Fix run line in Armv9.5-A's FEAT_CPA test

Author: pratlucas

llvm/test/MC/AArch64/armv9.5a-cpa.s

@@ -1,5 +1,5 @@
 // RUN: llvm-mc -triple aarch64 -show-encoding -mattr=+cpa < %s | FileCheck %s
-// NORUN: not llvm-mc -triple aarch64 < %s 2>&1 | FileCheck --check-prefix=ERROR-NO-CPA %s
+// RUN: not llvm-mc -triple aarch64 < %s 2>&1 | FileCheck --check-prefix=ERROR-NO-CPA %s
 
 addpt x0, x1, x2
 // CHECK: addpt x0, x1, x2               // encoding: [0x20,0x20,0x02,0x9a]