[PATCH 3/4] serial: lpuart: Enable IPG clock

[sbabic at denx.de]

> From: Ye Li <ye.li at nxp.com>
> Current codes only ennable the PER clock. However on iMX8 the LPUART
> also needs IPG clock which is an LPCG. Should not depend on the default
> LPCG setting.
> Signed-off-by: Ye Li <ye.li at nxp.com>
> Reviewed-by: Peng Fan <peng.fan at nxp.com>
> Signed-off-by: Sébastien Szymanski <sebastien.szymanski at armadeus.com>
Applied to u-boot-imx, master, thanks !

Best regards,
Stefano Babic

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