[fixup] Minor test changes (NFC)

Author: momchil-velikov

llvm/test/MC/AArch64/SME2p2/bfmop4as-widening-diagnostics.s

@@ -110,12 +110,6 @@ bfmop4a za0.s, {z0.h-z1.h}, {z10.h-z11.h}
 // CHECK: [[@LINE-1]]:{{[0-9]+}}: error: Invalid vector list, expected list with 2 consecutive SVE vectors in the range z16-z30, where the first vector is a multiple of 2 and with matching element types
 
 
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 // BFMOP4S
 
 // Single vectors

llvm/test/MC/AArch64/SME2p2/bfmop4as-widening.s

@@ -5,7 +5,7 @@
 // RUN: llvm-mc -triple=aarch64 -filetype=obj -mattr=+sme2p2 < %s \
 // RUN:        | llvm-objdump -d --mattr=+sme2p2 - | FileCheck %s --check-prefix=CHECK-INST
 // RUN: llvm-mc -triple=aarch64 -filetype=obj -mattr=+sme2p2 < %s \
-// RUN:        | llvm-objdump -d --mattr=-sme2 - | FileCheck %s --check-prefix=CHECK-UNKNOWN
+// RUN:        | llvm-objdump -d --mattr=-sme2p2 - | FileCheck %s --check-prefix=CHECK-UNKNOWN
 // Disassemble encoding and check the re-encoding (-show-encoding) matches.
 // RUN: llvm-mc -triple=aarch64 -show-encoding -mattr=+sme2p2 < %s \
 // RUN:        | sed '/.text/d' | sed 's/.*encoding: //g' \