i2c: fix init on generic board

On generic board, the i2c init initialize only
one bus. But the new i2c subsystem allow to
manage severals i2c bus. So in the case, instead
of initializing a bus, we just set the current
i2c bus. The initialization will be done in
the i2c command.
Signed-off-by: NPhilippe Reynes <tremyfr@yahoo.fr>

common/board_f.c

@@ -249,7 +249,11 @@ void dram_init_banksize(void)
 static int init_func_i2c(void)
 {
 	puts("I2C:   ");
+#ifdef CONFIG_SYS_I2C
+	i2c_init_all();
+#else
 	i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE);
+#endif
 	puts("ready\n");
 	return 0;
 }