mtd: mxs_nand: get the clock with the right name

Rename the gpmi_apb_bch clock name to gpmi_bch_apb, as you can find in
the device tree.

Fixes: commit a59691280daca ("MXS_NAND: Add clock support for iMX8")
Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
Reviewed-by: Michael Trimarchi <michael@amarulasolutions.com>
diff --git a/drivers/mtd/nand/raw/mxs_nand_dt.c b/drivers/mtd/nand/raw/mxs_nand_dt.c
index c1e7848..94ee7ed 100644
--- a/drivers/mtd/nand/raw/mxs_nand_dt.c
+++ b/drivers/mtd/nand/raw/mxs_nand_dt.c
@@ -132,15 +132,15 @@
 			return ret;
 		}
 
-		ret = clk_get_by_name(dev, "gpmi_apb_bch", &gpmi_clk);
+		ret = clk_get_by_name(dev, "gpmi_bch_apb", &gpmi_clk);
 		if (ret < 0) {
-			debug("Can't get gpmi_apb_bch clk: %d\n", ret);
+			debug("Can't get gpmi_bch_apb clk: %d\n", ret);
 			return ret;
 		}
 
 		ret = clk_enable(&gpmi_clk);
 		if (ret < 0) {
-			debug("Can't enable gpmi_apb_bch clk: %d\n", ret);
+			debug("Can't enable gpmi_bch_apb clk: %d\n", ret);
 			return ret;
 		}
 	}