Remove legato.h dependency in mkPatch
Remove legato.h dependency in mkPatch

The mkPatch tool runs on the host, and legato.h includes configuration
generated for the target.

Resolves: LE-12588
Change-Id: I0ced06ec21cfe21fd3eb39781d05996c763c90db

legatoproject/legato-af,legatoproject/legato-af,legatoproject/legato-af,legatoproject/legato-af,legatoproject/legato-af,legatoproject/legato-af,legatoproject/legato-af,legatoproject/legato-af,legatoproject/legato-af