clk: sunxi-ng: a523: add system mod clocks

Add the clocks driving some core system related subsystems of the SoC:
the "CE" crypto engine, the high speed timers, the DRAM and the associated
MBUS clock, and the PCIe clock.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Link: https://patch.msgid.link/20250307002628.10684-9-andre.przywara@arm.com


Signed-off-by: Chen-Yu Tsai <wens@csie.org>