Add /proc/cpuinfo to RuntimeInfo.

Test: adb shell vintf
Bug: 37513906
Change-Id: I94617cb2ca0ae961ec56b2d22b663ecafbcbed48
diff --git a/parse_string.cpp b/parse_string.cpp
index 8bf66c5..c37b39f 100644
--- a/parse_string.cpp
+++ b/parse_string.cpp
@@ -387,6 +387,8 @@
     for (const auto &file : ki.sepolicyFilePaths()) {
         oss << "    " << file << "\n";
     }
+    oss << "\ncpu info:\n";
+    oss << ki.cpuInfo();
     oss << "\n#CONFIG's loaded = " << ki.mKernelConfigs.size() << ";\n";
     for (const auto &pair : ki.mKernelConfigs) {
         oss << pair.first << "=" << pair.second << "\n";