Update stm32f042 reference to rev 8
drwxr-xr-x - .hooks
-rw-r--r-- 85 attribs
drwxr-xr-x - bin
drwxr-xr-x - datasheets
drwxr-xr-x - docs
-rw-r--r-- 567 gafrc
drwxr-xr-x - glabels
drwxr-xr-x - nickle
drwxr-xr-x - packages
-rw-r--r-- 6653 pcb.mk
-rw-r--r-- 130 pcb.settings
-rw-r--r-- 11887 preferred-parts
drwxr-xr-x - scheme
drwxr-xr-x - symbols