Use syscfg settign for sysinit stage numbers

This allows the target to rearrange package initialization order via syscfg override

Author: Philip Burkhardt

hw/bus/pkg.yml

@@ -25,4 +25,4 @@ pkg.keywords:
 pkg.deps:
 
 pkg.init:
-    bus_pkg_init: 100
+    bus_pkg_init: 'MYNEWT_VAL(BUS_SYSINIT_STAGE)'

hw/bus/syscfg.yml

@@ -73,3 +73,8 @@ syscfg.defs:
             magic value which is then checked on each operation to ensure
             proper objects are passed to APIs.
         value: 0
+
+    BUS_SYSINIT_STAGE:
+        description: >
+            System initialization stage for bus package
+        value: 100

hw/mcu/dialog/da1469x/pkg.yml

@@ -61,4 +61,4 @@ pkg.deps.SDADC:
     - "@apache-mynewt-core/hw/drivers/adc/sdadc_da1469x"
 
 pkg.init:
-    da1469x_lpclk_init: 1
+    da1469x_lpclk_init: 'MYNEWT_VAL(DA1469X_LPCLK_SYSINIT_STAGE)'

hw/mcu/dialog/da1469x/syscfg.yml

@@ -459,6 +459,11 @@ syscfg.defs:
           'Disable watchdog on init'
         value: 1
 
+    DA1469X_LPCLK_SYSINIT_STAGE:
+        description: >
+          'Initalization stage for DA1469X'
+        value: 1
+
 syscfg.vals:
     OS_TICKS_PER_SEC: 128
 

mgmt/smp/smp_os/pkg.yml

@@ -39,4 +39,4 @@ pkg.req_apis:
     - smp
 
 pkg.init:
-    smp_os_pkg_init: 501
+    smp_os_pkg_init: 'MYNEWT_VAL(SMP_OS_SYSINIT_STAGE)'

mgmt/smp/smp_os/syscfg.yml

@@ -0,0 +1,24 @@
+#
+# 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.
+#
+
+syscfg.defs:
+    SMP_OS_SYSINIT_STAGE:
+        description: >
+          'System initialization stage for SMP OS package'
+        value: 501