soc: mediatek: mtk-mutex: Reduce type size for mtk_mutex_data members

soc: mediatek: mtk-mutex: Reduce type size for mtk_mutex_data members

All of mutex_mod and mutex_table_mod contain an array of bit
numbers, which can go from 0 to 63, it is hence not needed to
use an unsigned 32-bits integer to store that: change them to
unsigned 8-bits instead.

As for the mutex_sof table since this directly contains the values
to write to the DISP_MUTEXn_CTL register, which has only bits [13:0]
(so this register is effectively 14 bits long), change that to use
unsigned 16-bits.

The type of mutex_{mod,sof}_reg was also changed to 16 bits, as
the maximum value that those will ever have is 0x800, because it
calculates as 0x30 + (0x20 * n) where n's maximum value is 63.

This reduces module size and brings no functional changes.

Before:
   text	   data	    bss	    dec	    hex	filename
   9929	    512	      0	  10441	   28c9	mtk-mutex.o

After:
   text	   data	    bss	    dec	    hex	filename
   7425	    512	      0	   7937	   1f01	mtk-mutex.o

Link: https://lore.kernel.org/r/20240729122538.989855-1-angelogioacchino.delregno@collabora.com
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>