i2c, fsl_i2c: switch to new multibus/multiadapter support

- added to fsl_i2c driver new multibus/multiadpater support
- adapted all config files, which uses this driver

Signed-off-by: Heiko Schocher <hs@denx.de>
Cc: Simon Glass <sjg@chromium.org>
Cc: Stephen Warren <swarren@wwwdotorg.org>
diff --git a/arch/m68k/cpu/mcf523x/speed.c b/arch/m68k/cpu/mcf523x/speed.c
index ae46257..7876ba8 100644
--- a/arch/m68k/cpu/mcf523x/speed.c
+++ b/arch/m68k/cpu/mcf523x/speed.c
@@ -47,7 +47,7 @@
 	gd->bus_clk = CONFIG_SYS_CLK;
 	gd->cpu_clk = (gd->bus_clk * 2);
 
-#ifdef CONFIG_FSL_I2C
+#ifdef CONFIG_SYS_I2C_FSL
 	gd->arch.i2c1_clk = gd->bus_clk;
 #endif