ARM: dts: socfpga: Add u-boot,dm-pre-reloc to necessary clock nodes

Add the pre-reloc DT markers to clock nodes needed in SPL and early
U-Boot stages. This is required to let the Arria10 clock driver start
early and provide clock information for UART and SDMMC.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Chin Liang See <chin.liang.see@intel.com>
Cc: Dinh Nguyen <dinguyen@kernel.org>
Cc: Ley Foon Tan <ley.foon.tan@intel.com>
diff --git a/arch/arm/dts/socfpga_arria10_socdk.dtsi b/arch/arm/dts/socfpga_arria10_socdk.dtsi
index 4018a5b..9160c20 100644
--- a/arch/arm/dts/socfpga_arria10_socdk.dtsi
+++ b/arch/arm/dts/socfpga_arria10_socdk.dtsi
@@ -167,3 +167,28 @@
 &watchdog1 {
 	status = "okay";
 };
+
+/* Clock available early */
+&main_noc_base_clk {
+	u-boot,dm-pre-reloc;
+};
+
+&main_periph_ref_clk {
+	u-boot,dm-pre-reloc;
+};
+
+&peri_noc_base_clk {
+	u-boot,dm-pre-reloc;
+};
+
+&noc_free_clk {
+	u-boot,dm-pre-reloc;
+};
+
+&l4_mp_clk {
+	u-boot,dm-pre-reloc;
+};
+
+&l4_sp_clk {
+	u-boot,dm-pre-reloc;
+};