ddr: imx93: Add 625M bypass clock support

Add 625M bypass clock that may be used DRAM 625M
bypass mode support.

Signed-off-by: Jacky Bai <ping.bai@nxp.com>
Reviewed-by: Ye Li <ye.li@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
diff --git a/arch/arm/mach-imx/imx9/clock.c b/arch/arm/mach-imx/imx9/clock.c
index 957f80f..a7eccca 100644
--- a/arch/arm/mach-imx/imx9/clock.c
+++ b/arch/arm/mach-imx/imx9/clock.c
@@ -648,6 +648,9 @@
 void dram_enable_bypass(ulong clk_val)
 {
 	switch (clk_val) {
+	case MHZ(625):
+		ccm_clk_root_cfg(DRAM_ALT_CLK_ROOT, SYS_PLL_PFD2, 1);
+		break;
 	case MHZ(400):
 		ccm_clk_root_cfg(DRAM_ALT_CLK_ROOT, SYS_PLL_PFD1, 2);
 		break;