clk: samsung: clk-pll: add support for pll_4311

pll4311 (also known in the vendor kernel as frd_4311_rpll) is a PLL used
in the Exynos2200 SoC. It's an integer/fractional PLL with mid frequency
FVCO (650 to 3500Mhz).

The PLL is functionally similar enough to pll531x, so the same code can
handle both.

Locktime for pll4311 is 500 - the same as the pll531x lock factor. MDIV,
PDIV, SDIV and FDIV masks and bit shifts are also the same as pll531x.

When defining a PLL, the "con" parameter should be set to CON3
register, like this:

PLL(pll_4311, CLK_FOUT_SHARED0_PLL, "fout_shared0_pll", "oscclk",
    PLL_LOCKTIME_PLL_SHARED0, PLL_CON3_PLL_SHARED0, NULL),

Signed-off-by: Ivaylo Ivanov <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Krzysztof Kozlowski <[email protected]>

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