mmc: fsl_esdhc: Use calloc()

A malloc() followed by memset() can be simply replaced by calloc().

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Andy Fleming <afleming@freescale.com>

drivers/mmc/fsl_esdhc.c

@@ -601,8 +601,7 @@ int fsl_esdhc_mmc_init(bd_t *bis)
 {
 	struct fsl_esdhc_cfg *cfg;
 
-	cfg = malloc(sizeof(struct fsl_esdhc_cfg));
-	memset(cfg, 0, sizeof(struct fsl_esdhc_cfg));
+	cfg = calloc(sizeof(struct fsl_esdhc_cfg), 1);
 	cfg->esdhc_base = CONFIG_SYS_FSL_ESDHC_ADDR;
 	cfg->sdhc_clk = gd->arch.sdhc_clk;
 	return fsl_esdhc_initialize(bis, cfg);