sh7760fb: write colormap value to hardware

The computed color value is never actually written to hardware
colormap register.

Signed-off-by: Manuel Lauss <[e-mail]>
Cc: Nobuhiro Iwamatsu <[e-mail]>
Cc: Munakata Hisao <[e-mail]>
Cc: Paul Mundt <[e-mail]>
Signed-off-by: Andrew Morton <[e-mail]>
Signed-off-by: Linus Torvalds <[e-mail]>

drivers/video/sh7760fb.c

···
 		col |= ((*g) & 0xff) << 8;
 		col |= ((*b) & 0xff);
 		col &= SH7760FB_PALETTE_MASK;
+		iowrite32(col, par->base + LDPR(s));
 
 		if (s < 16)
 			((u32 *) (info->pseudo_palette))[s] = s;