apalis_imx6: fix broken fsl_esdhc_imx conversion

Commit e37ac717 ("Convert to use fsl_esdhc_imx for i.MX platforms")
converted FSL_ESDHC to FSL_ESDHC_IMX, but the config check for
apalis_imx6 wasn't updated accordantly.
Signed-off-by: NRicardo Salveti <ricardo@foundries.io>
Reviewed-by: NPeng Fan <peng.fan@nxp.com>
Acked-by: NMax Krummenacher <max.krummenacher@toradex.com>

board/toradex/apalis_imx6/apalis_imx6.c

@@ -88,7 +88,7 @@ iomux_v3_cfg_t const uart1_pads_dte[] = {
 	MX6_PAD_CSI0_DAT11__UART1_TX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
 };
 
-#if defined(CONFIG_FSL_ESDHC) && defined(CONFIG_SPL_BUILD)
+#if defined(CONFIG_FSL_ESDHC_IMX) && defined(CONFIG_SPL_BUILD)
 /* Apalis MMC1 */
 iomux_v3_cfg_t const usdhc1_pads[] = {
 	MX6_PAD_SD1_CLK__SD1_CLK   | MUX_PAD_CTRL(USDHC_PAD_CTRL),
@@ -285,7 +285,7 @@ int board_ehci_hcd_init(int port)
 }
 #endif
 
-#if defined(CONFIG_FSL_ESDHC) && defined(CONFIG_SPL_BUILD)
+#if defined(CONFIG_FSL_ESDHC_IMX) && defined(CONFIG_SPL_BUILD)
 /* use the following sequence: eMMC, MMC1, SD1 */
 struct fsl_esdhc_cfg usdhc_cfg[CONFIG_SYS_FSL_USDHC_NUM] = {
 	{USDHC3_BASE_ADDR},