imx8m: Dump DRAM PLL rate by clocks command

Add the dump of DRAM PLL into "clocks" command

Reviewed-by: Fabio Estevam <festevam@gmail.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Ye Li <ye.li@nxp.com>
diff --git a/arch/arm/mach-imx/imx8m/clock_imx8mq.c b/arch/arm/mach-imx/imx8m/clock_imx8mq.c
index fb85a8d..ee18cde 100644
--- a/arch/arm/mach-imx/imx8m/clock_imx8mq.c
+++ b/arch/arm/mach-imx/imx8m/clock_imx8mq.c
@@ -762,6 +762,8 @@
 
 	freq = decode_frac_pll(ARM_PLL_CLK);
 	printf("ARM_PLL    %8d MHz\n", freq / 1000000);
+	freq = decode_sscg_pll(DRAM_PLL1_CLK);
+	printf("DRAM_PLL    %8d MHz\n", freq / 1000000);
 	freq = decode_sscg_pll(SYSTEM_PLL1_800M_CLK);
 	printf("SYS_PLL1_800    %8d MHz\n", freq / 1000000);
 	freq = decode_sscg_pll(SYSTEM_PLL1_400M_CLK);