[Keyboard] add prophet support (#9275)
* add prophet support
* Update keyboards/westfoxtrot/prophet/config.h
* Update keyboards/westfoxtrot/prophet/rules.mk
* Update keyboards/westfoxtrot/prophet/config.h
* Update keyboards/westfoxtrot/prophet/prophet.c
* Update keyboards/westfoxtrot/prophet/readme.md
* Update keyboards/westfoxtrot/prophet/readme.md
* Update keyboards/westfoxtrot/prophet/keymaps/default/keymap.c
* Update keyboards/westfoxtrot/prophet/keymaps/default/keymap.c
* Update keyboards/westfoxtrot/prophet/keymaps/via/keymap.c
* Update keyboards/westfoxtrot/prophet/keymaps/via/keymap.c
* Update keyboards/westfoxtrot/prophet/keymaps/via/keymap.c
* Update keyboards/westfoxtrot/prophet/keymaps/via/keymap.c
* remove bootloader_defs
fixed via keymap
* Update keyboards/westfoxtrot/prophet/prophet.h
* Update keyboards/westfoxtrot/prophet/keymaps/default/keymap.c
* Update keyboards/westfoxtrot/prophet/keymaps/default/keymap.c
* Update keyboards/westfoxtrot/prophet/keymaps/via/keymap.c
* Update keyboards/westfoxtrot/prophet/keymaps/via/keymap.c
* Update keyboards/westfoxtrot/prophet/keymaps/via/keymap.c
* changed vendor id
* changed prophet.c