[LLVM][Examples] Fix test requirements

Pull Request: #172140

Author: aengelke

llvm/test/Examples/IRTransforms/lit.local.cfg

@@ -0,0 +1,2 @@
+if not config.has_plugins:
+    config.unsupported = True

llvm/test/Examples/Kaleidoscope/lit.local.cfg

@@ -0,0 +1,3 @@
+# TODO: investigate
+if not "X86" in config.root.targets:
+    config.unsupported = True

llvm/test/Examples/OrcV2Examples/lit.local.cfg

@@ -0,0 +1,3 @@
+# TODO: investigate
+if not "X86" in config.root.targets:
+    config.unsupported = True

llvm/test/Examples/OrcV2Examples/orcv2-cbindings-lazy.test

@@ -1,7 +1,7 @@
 # RUN: OrcV2CBindingsLazy 2>&1 | FileCheck -check-prefix=THIS %s
 # RUN: OrcV2CBindingsLazy 0 2>&1 | FileCheck -check-prefix=OTHER %s
 
-# UNSUPPORTED: target=powerpc64{{.*}}
+# REQUIRES: target={{(x86|x86_64|aarch64|mips(64)?(el)?|loongarch64|riscv64)-.*}}
 
 # THIS: entry(1) = 1
 # OTHER: entry(2) = 2