bootable/recovery wants EqualsIgnoreCase.

Bug: N/A
Test: ran tests
Change-Id: I4a6ee9eba0514b8bb8fb0489f4d370964ce9c1c2
diff --git a/base/strings.cpp b/base/strings.cpp
index 7a94ad7..46fe939 100644
--- a/base/strings.cpp
+++ b/base/strings.cpp
@@ -112,5 +112,9 @@
   return EndsWith(s, suffix, false);
 }
 
+bool EqualsIgnoreCase(const std::string& lhs, const std::string& rhs) {
+  return strcasecmp(lhs.c_str(), rhs.c_str()) == 0;
+}
+
 }  // namespace base
 }  // namespace android