arm64: defconfig: add support for fbdev and fb console for tty

[opsiff]

支持arm64下的tty console切换

[deepin-ci-robot]

deepin pr auto review

关键摘要:

• 移除了对 CONFIG_DRM_FBDEV_EMULATION 的注释，但没有修改相关配置或代码，可能需要确认是否有必要启用此配置。
• 新增了 CONFIG_FRAMEBUFFER_CONSOLE_LEGACY_ACCELERATION 配置项，需要验证其对系统性能和稳定性是否有积极影响。

是否建议立即修改:

• 是，需要确认 CONFIG_DRM_FBDEV_EMULATION 配置项的移除是否符合预期功能需求，并确保相关代码和配置得到相应的更新和测试。
• 是，需要验证新增的 CONFIG_FRAMEBUFFER_CONSOLE_LEGACY_ACCELERATION 配置项是否真的对系统性能有提升，并确保没有引入新的安全风险或兼容性问题。

[deepin-ci-robot]

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