ARM: bcm2835_defconfig: Switch to SimpleDRM

fbdev is consider deprecated, so switch to DRM_SIMPLEDRM which works
as a drop-in replacement for FB_SIMPLE.
Suggested-by: NArnd Bergmann <arnd@arndb.de>
Signed-off-by: NStefan Wahren <stefan.wahren@i2se.com>
Link: https://lore.kernel.org/r/20230113205842.17051-2-stefan.wahren@i2se.comSigned-off-by: NFlorian Fainelli <f.fainelli@gmail.com>

arch/arm/configs/bcm2835_defconfig

@@ -107,8 +107,8 @@ CONFIG_MEDIA_CAMERA_SUPPORT=y
 CONFIG_DRM=y
 CONFIG_DRM_V3D=y
 CONFIG_DRM_VC4=y
+CONFIG_DRM_SIMPLEDRM=y
 CONFIG_FB=y
-CONFIG_FB_SIMPLE=y
 CONFIG_FRAMEBUFFER_CONSOLE=y
 CONFIG_SOUND=y
 CONFIG_SND=y