ARM: config: mutli v7: Reenable FB dependency

ARM: config: mutli v7: Reenable FB dependency

DRM_FBDEV_EMULATION previously selected FB and was default y as long as DRM
was enabled. In commit 6b2c04b84121 ("drm: Avoid circular dependencies for
CONFIG_FB") the select was replaced with a depends on FB, disabling the
drivers that depended on it.

Renable FB so we get back FB_EFI, FB_WM8505, FB_SH_MOBILE_LCDC, FB_SIMPLE and
VIDEO_VIVID.

It must be set to y and not a module as the test driver VIDEO_VIVID
requires it to be built in.

Link: https://lore.kernel.org/r/CAK8P3a18EdBKQdGDOZc9cPKsf=hY8==v2cO0DBE_tyd82Uq-Ng@mail.gmail.com
Signed-off-by: Joel Stanley <joel@jms.id.au>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>