AP_Scripting: added docs for reboot in periph

libraries/AP_Scripting/docs/docs.lua

@@ -1483,6 +1483,10 @@ function periph:get_yaw_earth() end
 ---@param text string
 function periph:can_printf(text) end
 
+-- desc
+---@param hold_in_bootloader boolean
+function periph:reboot(hold_in_bootloader) end
+
 -- desc
 ---@class ins
 ins = {}