build: PX4: install rc.<board-name> as init script

Tools/ardupilotwaf/boards.py

@@ -421,6 +421,7 @@ class px4(Board):
         self.bootloader_name = None
         self.board_name = None
         self.px4io_name = None
+        self.board_rc = False
         self.ROMFS_EXCLUDE = []
 
     def configure(self, cfg):
@@ -462,6 +463,7 @@ class px4(Board):
 
         env.PX4_BOOTLOADER_NAME = self.bootloader_name
         env.PX4_BOARD_NAME = self.board_name
+        env.PX4_BOARD_RC = self.board_rc
         env.PX4_PX4IO_NAME = self.px4io_name
 
         env.AP_PROGRAM_AS_STLIB = True

Tools/ardupilotwaf/px4.py

@@ -188,12 +188,16 @@ def _px4_taskgen(bld, **kw):
 @feature('_px4_romfs')
 def _process_romfs(self):
     bld = self.bld
-    file_list = (
+    file_list = [
         'init.d/rc.APM',
         'init.d/rc.error',
         'init.d/rcS',
         (bld.env.PX4_BOOTLOADER, 'bootloader/fmu_bl.bin'),
-    )
+    ]
+
+    if bld.env.PX4_BOARD_RC:
+        board_rc = 'init.d/rc.%s' % bld.env.get_flat('PX4_BOARD_NAME')
+        file_list.append((board_rc, 'init.d/rc.board'))
 
     romfs_src = bld.srcnode.find_dir(bld.env.PX4_ROMFS_SRC)
     romfs_bld = bld.bldnode.make_node(bld.env.PX4_ROMFS_BLD)