[AMDGPU] Fix endline in gfx950_invalid_encoding.txt. NFC. (#138813)

diff --git a/llvm/test/MC/AMDGPU/gfx950_invalid_encoding.txt b/llvm/test/MC/AMDGPU/gfx950_invalid_encoding.txt
index b0f3a8a..1a94342 100644
--- a/llvm/test/MC/AMDGPU/gfx950_invalid_encoding.txt
+++ b/llvm/test/MC/AMDGPU/gfx950_invalid_encoding.txt
@@ -10,4 +10,4 @@
 0x00,0x00,0xbf,0xd3,0x02,0x09,0x0a,0x04
 
 # GFX950: warning: invalid instruction encoding
-0x00,0x80,0xbf,0xd3,0x02,0x09,0x0a,0x04
\ No newline at end of file
+0x00,0x80,0xbf,0xd3,0x02,0x09,0x0a,0x04