ARM: imx: Use default SAVED_DRAM_TIMING_BASE on Data Modul i.MX8M Mini eDM SBC

Use default SAVED_DRAM_TIMING_BASE as that is what upstream TFA expects.
Without this change, the board will fail to suspend/resume e.g. in Linux.

Signed-off-by: Marek Vasut <marex@denx.de>
diff --git a/configs/imx8mm_data_modul_edm_sbc_defconfig b/configs/imx8mm_data_modul_edm_sbc_defconfig
index 8df6b4c..7e8fb84 100644
--- a/configs/imx8mm_data_modul_edm_sbc_defconfig
+++ b/configs/imx8mm_data_modul_edm_sbc_defconfig
@@ -157,7 +157,6 @@
 CONFIG_CLK_COMPOSITE_CCF=y
 CONFIG_SPL_CLK_IMX8MM=y
 CONFIG_CLK_IMX8MM=y
-CONFIG_SAVED_DRAM_TIMING_BASE=0x40000000
 CONFIG_DFU_TFTP=y
 CONFIG_DFU_TIMEOUT=y
 CONFIG_DFU_MMC=y