imx:mx6sxsabresd fix pfuz probe failed

The PFUZ probe failed with the following msg:
" wait_for_sr_state: failed sr=81 cr=a0 state=2020
  i2c_init_transfer: failed for chip 0x8 retry=0
  wait_for_sr_state: failed sr=81 cr=a0 state=2020
  i2c_init_transfer: failed for chip 0x8 retry=1
  wait_for_sr_state: failed sr=81 cr=a0 state=2020
  i2c_init_transfer: failed for chip 0x8 retry=2
  i2c_init_transfer: give up i2c_regs=021a0000
  Can't find PMIC:PFUZE100 "

board_early_init_f is too early to call i2c related setting, because
init_func_i2c is called after board_early_init_f being invoked. Thus
move setup_i2c into board_init.

Also PFUZ is connected to I2C bus 0, so change "1" -> "0".

Using this patch PFUZ can be correctly probed:
"PMIC:  PFUZE100 ID=0x11"

Signed-off-by: Peng Fan <Peng.Fan@freescale.com>
Acked-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Stefano Babic <sbabic@denx.de>
diff --git a/board/freescale/mx6sxsabresd/mx6sxsabresd.c b/board/freescale/mx6sxsabresd/mx6sxsabresd.c
index 68d3718..256ea29 100644
--- a/board/freescale/mx6sxsabresd/mx6sxsabresd.c
+++ b/board/freescale/mx6sxsabresd/mx6sxsabresd.c
@@ -243,7 +243,6 @@
 int board_early_init_f(void)
 {
 	setup_iomux_uart();
-	setup_i2c(1, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info1);
 
 	/* Enable PERI_3V3, which is used by SD2, ENET, LVDS, BT */
 	imx_iomux_v3_setup_multiple_pads(peri_3v3_pads,
@@ -277,6 +276,10 @@
 	/* Address of boot parameters */
 	gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
 
+#ifdef CONFIG_SYS_I2C_MXC
+	setup_i2c(0, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info1);
+#endif
+
 	return 0;
 }