feat(imx8m): add more dram pll setting

Add DRAM PLL frequency setting for 3732mts & 3733mts.

Change-Id: I74feab2185376bbb84826d7ee79b5e25cbc4d263
Signed-off-by: Marek Vasut <marex@denx.de>
diff --git a/plat/imx/imx8m/ddr/clock.c b/plat/imx/imx8m/ddr/clock.c
index 8b132d2..31f2f56 100644
--- a/plat/imx/imx8m/ddr/clock.c
+++ b/plat/imx/imx8m/ddr/clock.c
@@ -91,6 +91,10 @@
 	case 4000:
 		mmio_write_32(DRAM_PLL_CTRL + 0x4, (250 << 12) | (3 << 4) | 1);
 		break;
+	case 3733:
+	case 3732:
+		mmio_write_32(DRAM_PLL_CTRL + 0x4, (311 << 12) | (4 << 4) | 1);
+		break;
 	case 3200:
 		mmio_write_32(DRAM_PLL_CTRL + 0x4, (200 << 12) | (3 << 4) | 1);
 		break;