clk: imx: Add i.MXRT11xx pllv3 variant

clk: imx: Add i.MXRT11xx pllv3 variant

The i.MXRT11 series has two new pll types but are variants of existing.
This patch adds the ability to read one of the pll types' frequency
as it can't be changed unlike the generic pll it also has the
division factors swapped.

Signed-off-by: Jesse Taube <Mr.Bossman075@gmail.com>