RAWHID_ENABLED flag not checked correctly in HID.cpp

[sonovice]

In the "Arduino\hardware\arduino\avr\cores\arduino\HID.cpp" file in line 109 it says:

if RAWHID_ENABLED

while it should be

ifdef RAWHID_ENABLED

to work properly. This tiny bug turned out to be pretty nasty, had to search quite a while for it...

I am using 1.5.7 of the IDE.

[cmaglie]

Fixed with #2206, thank you!