[Inliner][test] Fix incorrect REQUIRE line in inline-switch-default.ll (NFC) (llvm#95009)

It should be `x86-registered-target` because we only need the X86 target
in this case. `x86_64-linux` will be too strict here as it puts a
prerequisite on the default target triple.

Author: mshockwave

llvm/test/Transforms/Inline/inline-switch-default.ll

@@ -1,7 +1,7 @@
 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 4
 ; RUN: opt %s -S -passes=inline -inline-threshold=16 -min-jump-table-entries=4 | FileCheck %s -check-prefix=LOOKUPTABLE
 ; RUN: opt %s -S -passes=inline -inline-threshold=11 -min-jump-table-entries=5 | FileCheck %s -check-prefix=SWITCH
-; REQUIRES: x86_64-linux
+; REQUIRES: x86-registered-target
 
 target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
 target triple = "x86_64-unknown-linux-gnu"