Another fix for construct_address_map

* must also query master for expected base address

platform/common/platform.tcl

@@ -252,7 +252,7 @@ namespace eval platform {
           }
           puts "    address map info: $me]"
           set range  [expr "max([dict get $me range], 4096)"]
-          set offset [dict get $me "offset"]
+          set offset [expr "max([dict get $me "offset"], [get_property OFFSET $intf])"]
           set range  [expr "min($range, [get_property RANGE $intf])"]
           puts "      range: $range"
           puts "      offset: $offset"