Implement reset handler for remoteproc

Use the reset controller driver mechanism to control the Ethos-U
subsystem remoteproc driver.

Change-Id: If180d5b922f8b1cd245af7f922911c17ecd313a3
diff --git a/remoteproc/Kconfig b/remoteproc/Kconfig
new file mode 100644
index 0000000..4884cd2
--- /dev/null
+++ b/remoteproc/Kconfig
@@ -0,0 +1,28 @@
+#
+# Copyright (c) 2020-2021 Arm Limited. All rights reserved.
+#
+# This program is free software and is provided to you under the terms of the
+# GNU General Public License version 2 as published by the Free Software
+# Foundation, and any use by you of this program is subject to the terms
+# of such GNU licence.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, you can access it online at
+# http://www.gnu.org/licenses/gpl-2.0.html.
+#
+# SPDX-License-Identifier: GPL-2.0-only
+#
+
+config ARM_ETHOSU_SGM775_RESET
+	tristate "Arm Ethos-U SGM775 Reset"
+	depends on RESET_CONTROLLER
+        help
+          Say Y here if you want to build the Arm Ethos-U reset controller
+          reference module for controlling the reset of Cortex-M CPU on
+          the Ethos-U subsystem.
+