clk: samsung: Add clock PLL support for ARTPEC-9 SoC

clk: samsung: Add clock PLL support for ARTPEC-9 SoC

Add below clock PLL support for Axis ARTPEC-9 SoC platform:
- pll_a9fracm: Integer PLL with mid frequency FVCO (800 to 6400 MHz)
             This is used in ARTPEC-9 SoC for shared PLL

- pll_a9fraco: Integer/Fractional PLL with mid frequency FVCO
             (600 to 2400 MHz)
             This is used in ARTPEC-9 SoC for Audio PLL

FOUT calculation for pll_a9fracm and pll_a9fraco:
FOUT = (MDIV x FIN)/(PDIV x (SDIV + 1)) for integer PLL
FOUT = (((MDIV + (KDIV/2^24)) x FIN)/(PDIV x (SDIV + 1)) for fractional PLL

Signed-off-by: GyoungBo Min <mingyoungbo@coasia.com>
Reviewed-by: Kyunghwan Kim <kenkim@coasia.com>
Signed-off-by: Ravi Patel <ravi.patel@samsung.com>
Link: https://patch.msgid.link/20251029130731.51305-3-ravi.patel@samsung.com
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>