pollux_windy: fix makefile

the previous commit (move bootrec-device) removed sysmon.cfg
instead of bootrec-device from the makefile, resulting in errors

Partially reverts commit f53181acc8db38bdddaca1d1f0fc57fd1a6bfaab

Change-Id: I22fea70cb01ad001ea5c1570003c110549db8fca