imx8ulp: Fix DCNANO QoS setting

The setting does not have effect because we should set it after
power on the PS16 for NIC AV.

So move it after upower_init which has powered on all PS

Reviewed-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Ye Li <ye.li@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
diff --git a/arch/arm/mach-imx/imx8ulp/soc.c b/arch/arm/mach-imx/imx8ulp/soc.c
index 0cf4765..2348132 100644
--- a/arch/arm/mach-imx/imx8ulp/soc.c
+++ b/arch/arm/mach-imx/imx8ulp/soc.c
@@ -485,7 +485,10 @@
 	writel(0x1f, SIM_SEC_BASE_ADDR + 0x50);
 	writel(0xffffffff, SIM_SEC_BASE_ADDR + 0x54);
 	writel(0x003fffff, SIM_SEC_BASE_ADDR + 0x58);
+}
 
+void set_lpav_qos(void)
+{
 	/* Set read QoS of dcnano on LPAV NIC */
 	writel(0xf, 0x2e447100);
 }