set DCFG_XCVRDLY when using external ULPI highspeed phy #1195
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Describe the PR
Fix #496 by setting DCFG_XCVRDLY when using with external ULPI phy. It has no impact with H743 and currently-working older phy USB3320 (probably a fraction of ms delay). So I guess it is safe to just set it in all cases.