mmc: relocate code comment

The comment about init op being NULL used to be next to the NULL check
code. Commit 8ca51e51c182 ("dm: mmc: Add a way to use driver model for
MMC operations") separated the comment from the code. Put them back
together.

Fixes: 8ca51e51c182 ("dm: mmc: Add a way to use driver model for MMC operations")
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c
index c9aa13b..eecc7d6 100644
--- a/drivers/mmc/mmc.c
+++ b/drivers/mmc/mmc.c
@@ -2819,12 +2819,12 @@
 			 MMC_CAP(MMC_LEGACY) | MMC_MODE_1BIT;
 
 #if !defined(CONFIG_MMC_BROKEN_CD)
-	/* we pretend there's no card when init is NULL */
 	no_card = mmc_getcd(mmc) == 0;
 #else
 	no_card = 0;
 #endif
 #if !CONFIG_IS_ENABLED(DM_MMC)
+	/* we pretend there's no card when init is NULL */
 	no_card = no_card || (mmc->cfg->ops->init == NULL);
 #endif
 	if (no_card) {