clk: sunxi-ng: add missing MODULE_DESCRIPTION() macros

clk: sunxi-ng: add missing MODULE_DESCRIPTION() macros

make allmodconfig && make W=1 C=1 reports:
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/clk/sunxi-ng/sunxi-ccu.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/clk/sunxi-ng/suniv-f1c100s-ccu.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/clk/sunxi-ng/sun20i-d1-ccu.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/clk/sunxi-ng/sun20i-d1-r-ccu.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/clk/sunxi-ng/sun50i-a64-ccu.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/clk/sunxi-ng/sun50i-a100-ccu.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/clk/sunxi-ng/sun50i-a100-r-ccu.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/clk/sunxi-ng/sun50i-h6-ccu.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/clk/sunxi-ng/sun50i-h6-r-ccu.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/clk/sunxi-ng/sun50i-h616-ccu.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/clk/sunxi-ng/sun4i-a10-ccu.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/clk/sunxi-ng/sun6i-a31-ccu.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/clk/sunxi-ng/sun6i-rtc-ccu.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/clk/sunxi-ng/sun8i-a23-ccu.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/clk/sunxi-ng/sun8i-a33-ccu.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/clk/sunxi-ng/sun8i-a83t-ccu.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/clk/sunxi-ng/sun8i-h3-ccu.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/clk/sunxi-ng/sun8i-r40-ccu.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/clk/sunxi-ng/sun8i-v3s-ccu.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/clk/sunxi-ng/sun8i-de2-ccu.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/clk/sunxi-ng/sun8i-r-ccu.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/clk/sunxi-ng/sun9i-a80-ccu.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/clk/sunxi-ng/sun9i-a80-de-ccu.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/clk/sunxi-ng/sun9i-a80-usb-ccu.o

Add the missing invocations of the MODULE_DESCRIPTION() macro.

Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Link: https://lore.kernel.org/r/20240603-md-drivers-clk-sunxi-ng-v1-1-c44a4c22d544@quicinc.com
Signed-off-by: Chen-Yu Tsai <wens@csie.org>