Improve a couple of comments

src/include/86box/hdc.h

@@ -28,6 +28,7 @@
                       * least 7 devices, with each device being  \
                       * able to support 8 units, but hey... */
 
+/* Controller types. */
 #define HDC_NONE     0
 #define HDC_INTERNAL 1
 

src/video/vid_voodoo_banshee.c

@@ -1567,7 +1567,7 @@ banshee_reg_writel(uint32_t addr, uint32_t val, void *p)
             break;
 
         case 0x0600000:
-        case 0x0700000: /*Texture download*/
+        case 0x0700000: /*TMU0 Texture download*/
             voodoo->tex_count++;
             voodoo_queue_command(voodoo, (addr & 0x1ffffc) | FIFO_WRITEL_TEX, val);
             break;