Fixed cmsis_generic.h header
Fixed cmsis_generic.h header

Added #undef __CMSIS_GENERIC to prevent huge bunch of extremely weird errors from
other parts of the code that use the "regular" (non generic) CMSIS.

Psykar/kubos,kubostech/KubOS,Psykar/kubos,Psykar/kubos,Psykar/kubos,Psykar/kubos,Psykar/kubos,kubostech/KubOS,Psykar/kubos