Report uncrypt errors in details

Add the error codes for uncrypt and report the failure details in
uncrypt_status.

Test: uncrypt_error logs correctly in last_install
Bug: 31603820
Change-Id: I8e0de845ce1707b6f8f5ae84564c5e93fd5f5ef5

error_code.h

@@ -43,4 +43,26 @@ enum CauseCode {
     kVendorFailure = 200
 };
 
+enum UncryptErrorCode {
+    kUncryptNoError = -1,
+    kUncryptErrorHolder = 50,
+    kUncryptTimeoutError = 100,
+    kUncryptFileRemoveError,
+    kUncryptFileOpenError,
+    kUncryptSocketOpenError,
+    kUncryptSocketWriteError,
+    kUncryptSocketListenError,
+    kUncryptSocketAcceptError,
+    kUncryptFstabReadError,
+    kUncryptFileStatError,
+    kUncryptBlockOpenError,
+    kUncryptIoctlError,
+    kUncryptReadError,
+    kUncryptWriteError,
+    kUncryptFileSyncError,
+    kUncryptFileCloseError,
+    kUncryptFileRenameError,
+    kUncryptPackageMissingError,
+};
+
 #endif