[compiler-rt] [test] Look for the right file name suffix for arm targets (llvm#137174)

Compiler-rt libraries on arm use "arm" or "armhf" as suffix, not the
full exact arch name like "armv7".

This matches what was done for the build system in
8e11bed, to match the names that Clang
expects (in getArchNameForCompilerRTLib in Clang).

This fixes building a large number of the compiler-rt tests for
Windows/armv7.

Author: mstorsjo

compiler-rt/test/lit.common.configured.in

@@ -69,7 +69,13 @@ elif config.android:
   else:
     set_default("target_suffix", "-%s-android" % config.target_arch)
 else:
-  set_default("target_suffix", "-%s" % config.target_arch)
+  if config.target_arch.startswith("arm"):
+    if config.target_arch.endswith("hf"):
+      set_default("target_suffix", "-armhf")
+    else:
+      set_default("target_suffix", "-arm")
+  else:
+    set_default("target_suffix", "-%s" % config.target_arch)
 
 set_default("have_internal_symbolizer", @COMPILER_RT_ENABLE_INTERNAL_SYMBOLIZER_PYBOOL@)
 set_default("have_disable_symbolizer_path_search", @SANITIZER_DISABLE_SYMBOLIZER_PATH_SEARCH_PYBOOL@)