[ARM][NFC] Fix invalid target triples in tests (#213588)

Update the expected codegen as-needed.

GitOrigin-RevId: 20d5962141fd3f340840b86666f58c7f230f717c

test/ELF/arm-thunk-reuse.s

diff --git a/test/ELF/arm-thunk-reuse.s b/test/ELF/arm-thunk-reuse.s
index f6815da..cde6816 100644
--- a/test/ELF/arm-thunk-reuse.s
+++ b/test/ELF/arm-thunk-reuse.s
@@ -1,6 +1,6 @@
 # REQUIRES: arm
 # RUN: rm -rf %t && split-file %s %t
-# RUN: llvm-mc -filetype=obj -triple=armv7-a-none-eabi --arm-add-build-attributes %t/a.s -o %t/a.o
+# RUN: llvm-mc -filetype=obj -triple=armv7a-none-eabi --arm-add-build-attributes %t/a.s -o %t/a.o
 # RUN: ld.lld -pie -T %t/lds %t/a.o -o %t/a
 # RUN: llvm-objdump --no-print-imm-hex -d --no-show-raw-insn %t/a | FileCheck %s
 # RUN: llvm-objdump -s --triple=armv7a-none-linux-gnueabi %t/a | FileCheck --check-prefix=CHECK-LE %s