memstats: send XRAM size instead of stack size.

avr/modules/network/msg/memstats-w.asm

@@ -35,6 +35,12 @@ NETMSG_MemStats_Write:
   st X+, r16
   st X+, r16
   ; stack used
+.ifdef MODULES_XRAM
+  lds r20, xramLastAddress
+  lds r21, xramLastAddress+1
+  st X+, r20
+  st X+, r21
+.else
   ldi r20, LOW(RAMEND)
   ldi r21, HIGH(RAMEND)
   in r17, SPL
@@ -43,6 +49,7 @@ NETMSG_MemStats_Write:
   in r17, SPH
   sbc r21, r17
   st X+, r21
+.endif
   ; current buffers used
   push xl
     push xh