Update keystore to use KM4.1.

This is the first part of the update, adjusting keystore to use the
KM4.1 interface, but not call any of the new methods.  That will come
in a subsequent CL.

Test: CtsKeystoreTestCases
Change-Id: Ib7486aad46c144471a1607eec31b8df1059a511d
Merged-In: Ib7486aad46c144471a1607eec31b8df1059a511d
diff --git a/keystore/OperationResult.cpp b/keystore/OperationResult.cpp
index 3ff8bc3..dec4d40 100644
--- a/keystore/OperationResult.cpp
+++ b/keystore/OperationResult.cpp
@@ -29,8 +29,8 @@
 namespace security {
 namespace keymaster {
 
-using keystore::keymaster::ErrorCode;
 using ::android::status_t;
+using ::keystore::ErrorCode;
 
 OperationResult::OperationResult() : resultCode(), token(), handle(0), inputConsumed(0), data() {}