Add mpu driver and remove interface library
from drivers

Add mpu driver for upstreaming

After removing of interface library,targets and applications
will list explicitly which libraries to link

Change-Id: Icfa449a2981093161f283e45b4d52ca6199371b8
diff --git a/drivers/mpu/CMakeLists.txt b/drivers/mpu/CMakeLists.txt
new file mode 100644
index 0000000..2b9797e
--- /dev/null
+++ b/drivers/mpu/CMakeLists.txt
@@ -0,0 +1,25 @@
+#
+# Copyright (c) 2020-2021 Arm Limited. All rights reserved.
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+# Licensed under the Apache License, Version 2.0 (the License); you may
+# not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an AS IS BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+add_library(mpu INTERFACE)
+
+target_sources(mpu INTERFACE
+    src/mpu.cpp)
+
+target_include_directories(mpu INTERFACE
+    include)