[PATCH] arm: imx: imx8mq: add support to get values for more clocks

[sbabic at denx.de]

> Return the root clock values for MXC_CSPI_CLK, MXC_I2C_CLK,
> MXC_UART_CLK and MXC_QSPI_CLK.
> At least for the I2C clock the missing support leads to a wrong
> configured I2C frequency. The expected value is 100kHz but the resulting
> value is about 1MHz.
> Signed-off-by: Heiko Thiery <heiko.thiery at gmail.com>
> Reviewed-by: Peng Fan <peng.fan at nxp.com>
> Reviewed-by: Fabio Estevam <festevam at gmail.com>
Applied to u-boot-imx, master, thanks !

Best regards,
Stefano Babic

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