[PATCH v2 2/6] imx8: sys_proto.h: change guard logic around ROM API

> This exposes the struct rom_api, the g_rom_api variable declaration > and the associated #defines to slightly fewer boards: namely, those > IMX8M which are not IMX8MN or IMX8MP. But the latter two are the only > IMX8M* ones where the g_rom_api variable is defined (in imx8m/soc.c), > so that

[PATCH v2 2/6] imx8: sys_proto.h: change guard logic around ROM API

This exposes the struct rom_api, the g_rom_api variable declaration and the associated #defines to slightly fewer boards: namely, those IMX8M which are not IMX8MN or IMX8MP. But the latter two are the only IMX8M* ones where the g_rom_api variable is defined (in imx8m/soc.c), so that should be