boot_serial; text size reduction.
 - Remove dependency to sprintf()
 - Remove dependency to cborattr
 - mynewt: replace console with more direct interface to uart
 - mynewt: settings to reduce included os code

Signed-off-by: Marko Kiiskila <marko@runtime.io>
diff --git a/boot/mynewt/boot_uart/pkg.yml b/boot/mynewt/boot_uart/pkg.yml
new file mode 100644
index 0000000..a100a20
--- /dev/null
+++ b/boot/mynewt/boot_uart/pkg.yml
@@ -0,0 +1,32 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you 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
+#
+#  http://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.
+#
+
+pkg.name: boot/mynewt/boot_uart
+pkg.description: "For interfacing with uart from boot_serial"
+pkg.author: "Apache Mynewt <dev@mynewt.apache.org>"
+pkg.homepage: "http://mynewt.apache.org/"
+pkg.keywords:
+    - loader
+    - boot
+    - bootloader
+
+pkg.deps:
+    - "@apache-mynewt-core/hw/hal"
+
+