[FS#1314] kernel, serial line, pl2303 changes breaks ntpd with RAWDCF clock in V15 an V17 (works in V12)

[LEDE Bugs]

The following task is now closed:

FS#1314 - kernel, serial line, pl2303 changes breaks ntpd with RAWDCF clock in V15 an V17 (works in V12)
User who did this - Felix Fietkau (nbd)

Reason for closing: Duplicate
Additional comments about closing: FS#1316

More information can be found at the following URL:
https://bugs.openwrt.org/index.php?do=details&task_id=1314