ddr: imx: Handle both 3733 and 3732 MTps rates

The DDR calibration tool for i.MX8M currently produces 3732 MTps rate in
lpddr4_timing.c , while the PHY code expects 3733 MTps rate. Support both
variants to avoid surprises where the system fails to boot.

Signed-off-by: Marek Vasut <marex@denx.de>
diff --git a/drivers/ddr/imx/phy/ddrphy_utils.c b/drivers/ddr/imx/phy/ddrphy_utils.c
index b852c87..6a8b6be 100644
--- a/drivers/ddr/imx/phy/ddrphy_utils.c
+++ b/drivers/ddr/imx/phy/ddrphy_utils.c
@@ -112,6 +112,7 @@
 		dram_disable_bypass();
 		break;
 	case 3733:
+	case 3732:
 		dram_pll_init(MHZ(933));
 		dram_disable_bypass();
 		break;