ARM: imx: let IMX_HAVE_PLATFORM_IMX_FB select HAVE_FB_IMX

This way FB_IMX can just depend on HAVE_FB_IMX and machines
just need to select IMX_HAVE_PLATFORM_IMX_FB without bothering
about HAVE_FB_IMX.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
diff --git a/arch/arm/mach-imx/Kconfig b/arch/arm/mach-imx/Kconfig
index 176984f..6875cdf 100644
--- a/arch/arm/mach-imx/Kconfig
+++ b/arch/arm/mach-imx/Kconfig
@@ -17,9 +17,8 @@
 config SOC_IMX25
 	bool
 	select CPU_ARM926T
-	select ARCH_MXC_IOMUX_V3
-	select HAVE_FB_IMX
 	select ARCH_MXC_AUDMUX_V2
+	select ARCH_MXC_IOMUX_V3
 
 config SOC_IMX27
 	bool