drivers/video/Kconfig: Fix FB_PMAGB_B dependencies

Add a missing FB dependency to FB_PMAGB_B.
Signed-off-by: NMaciej W. Rozycki <macro@linux-mips.org>
Cc: "Antonino A. Daplas" <adaplas@pol.net>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

drivers/video/Kconfig

@@ -1652,7 +1652,7 @@ config FB_PMAG_BA
 
 config FB_PMAGB_B
 	tristate "PMAGB-B TURBOchannel framebuffer support"
-	depends on TC
+	depends on FB && TC
  	select FB_CFB_FILLRECT
  	select FB_CFB_COPYAREA
  	select FB_CFB_IMAGEBLIT