Set CONFIG_DRAM_CLK=624 for Orange Pi Zero Plus2 H5

configs/orangepi_zero_plus2_defconfig

@@ -2,7 +2,7 @@ CONFIG_ARM=y
 CONFIG_ARCH_SUNXI=y
 CONFIG_SPL=y
 CONFIG_MACH_SUN50I_H5=y
-CONFIG_DRAM_CLK=504
+CONFIG_DRAM_CLK=624
 CONFIG_DRAM_ZQ=3881977
 # CONFIG_DRAM_ODT_EN is not set
 CONFIG_MMC0_CD_PIN="PH13"