[PATCH] fbdev Kconfig dependency fixes

radeonfb, rivafb and i810fb need CONFIG_FB_MODE_HELPERS.
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

drivers/video/Kconfig

@@ -439,6 +439,7 @@ config FB_RIVA
 	depends on FB && PCI
 	select I2C_ALGOBIT if FB_RIVA_I2C
 	select I2C if FB_RIVA_I2C
+	select FB_MODE_HELPERS
 	help
 	  This driver supports graphics boards with the nVidia Riva/Geforce
 	  chips.
@@ -473,6 +474,7 @@ config FB_I810
 	depends on FB && EXPERIMENTAL && PCI && X86 && !X86_64
 	select AGP
 	select AGP_INTEL
+	select FB_MODE_HELPERS
 	help
 	  This driver supports the on-board graphics built in to the Intel 810 
           and 815 chipsets.  Say Y if you have and plan to use such a board.
@@ -676,6 +678,7 @@ config FB_RADEON
 	depends on FB && PCI
 	select I2C_ALGOBIT if FB_RADEON_I2C
 	select I2C if FB_RADEON_I2C
+	select FB_MODE_HELPERS
 	help
 	  Choose this option if you want to use an ATI Radeon graphics card as
 	  a framebuffer device.  There are both PCI and AGP versions.  You