Use runtime ABI instead of hw architecture when processing microdumps

src/processor/microdump.cc

Index: src/processor/microdump.cc
diff --git a/src/processor/microdump.cc b/src/processor/microdump.cc
index 3cc618f6018147e76634ff22e1a6b0e5d26ca532..6a51a9971a9256a0c436b23f1e520c0db247cff2 100644
--- a/src/processor/microdump.cc
+++ b/src/processor/microdump.cc
@@ -230,7 +230,7 @@ Microdump::Microdump(const string& contents)
       GetLine(&os_tokens, &os_version);
       os_version.erase(0, 1);  // remove leading space.
 
-      system_info_->cpu = hw_arch;
+      system_info_->cpu = arch;
       system_info_->cpu_count = HexStrToL<uint8_t>(num_cpus);
       system_info_->os_version = os_version;