Tweak 5.0 L decrypt

Mount the vendor partition if it exists so we can use any
proprietary files we may need.
Relocate auto decrypt when default_password is in use to after all
partitions are added so that we can mount the vendor partition.

Change-Id: I93455a35695779f53ef57a82d3d45c7216c13639
diff --git a/partitionmanager.cpp b/partitionmanager.cpp
index d2c91be..f75fcbc 100644
--- a/partitionmanager.cpp
+++ b/partitionmanager.cpp
@@ -139,6 +139,24 @@
 	if (settings_partition) {
 		Setup_Settings_Storage_Partition(settings_partition);
 	}
+#ifdef TW_INCLUDE_L_CRYPTO
+	TWPartition* Decrypt_Data = Find_Partition_By_Path("/data");
+	if (Decrypt_Data && Decrypt_Data->Is_Encrypted && !Decrypt_Data->Is_Decrypted) {
+		int password_type = cryptfs_get_password_type();
+		if (password_type == CRYPT_TYPE_DEFAULT) {
+			LOGINFO("Device is encrypted with the default password, attempting to decrypt.\n");
+			if (Decrypt_Device("default_password") == 0) {
+				gui_print("Successfully decrypted with default password.\n");
+				DataManager::SetValue(TW_IS_ENCRYPTED, 0);
+			} else {
+				LOGERR("Unable to decrypt with default password.");
+				LOGERR("You may need to perform a Format Data.\n");
+			}
+		} else {
+			DataManager::SetValue("TW_CRYPTO_TYPE", password_type);
+		}
+	}
+#endif
 	Update_System_Details();
 	UnMount_Main_Partitions();
 	return true;
@@ -1375,6 +1393,9 @@
 #endif
 
 	strcpy(cPassword, Password.c_str());
+#ifdef TW_INCLUDE_L_CRYPTO
+	Mount_By_Path("/vendor", false); // if exists, mount vendor partition as we may need some proprietary files
+#endif
 	int pwret = cryptfs_check_passwd(cPassword);
 
 	if (pwret != 0) {