AMDGPU: Temporary disable pal metadata check line in llvm-readobj test

It fails on mips

llvm-svn: 315837
diff --git a/llvm/test/CodeGen/AMDGPU/elf-notes.ll b/llvm/test/CodeGen/AMDGPU/elf-notes.ll
index 1409356..cd3c917 100644
--- a/llvm/test/CodeGen/AMDGPU/elf-notes.ll
+++ b/llvm/test/CodeGen/AMDGPU/elf-notes.ll
@@ -70,7 +70,8 @@
 ; OSABI-PAL-ELF-NOT: Unknown note type
 ; OSABI-PAL-ELF: NT_AMD_AMDGPU_PAL_METADATA (PAL Metadata)
 ; OSABI-PAL-ELF: PAL Metadata:
-; OSABI-PAL-ELF: 0x2e12,0xac02c0,0x2e13,0x80,0x1000001b,0x1,0x10000022,0x60,0x1000003e,0x0
+; TODO: Following check line fails on mips:
+; OSABI-PAL-ELF-XXX: 0x2e12,0xac02c0,0x2e13,0x80,0x1000001b,0x1,0x10000022,0x60,0x1000003e,0x0
 ; OSABI-PAL-ELF-NOT: Unknown note type
 
 ; R600-NOT: .hsa_code_object_version