Snippets for xdrv:chips 1.4.0 from Alpine aarch64

Sourced from https://build.alpinelinux.org/buildlogs/build-edge-aarch64/community/xf86-video-chips/xf86-video-chips-1.4.0-r4.log.

• ct_regs.c:115:5: warning: implicit declaration of function 'outb' [-Wimplicit-function-declaration]
    115 |     outb(cPtr->PIOBase + CHIPS_XR_INDEX, index);
        |     ^~~~
  

• ct_regs.c:123:12: warning: implicit declaration of function 'inb' [-Wimplicit-function-declaration]
    123 |     return inb(cPtr->PIOBase + CHIPS_XR_DATA);
        |            ^~~
  

• ct_cursor.c:103:13: warning: implicit declaration of function 'outw'; did you mean 'putw'? [-Wimplicit-function-declaration]
    103 |             outw(cPtr->PIOBase+DR(0x8), 0x21);
        |             ^~~~
        |             putw
  

• ct_cursor.c:193:13: warning: implicit declaration of function 'outl' [-Wimplicit-function-declaration]
    193 |             outl(cPtr->PIOBase+DR(0xB), xy);
        |             ^~~~
  

• ct_driver.c:6597:26: warning: implicit declaration of function 'inb' [-Wimplicit-function-declaration]
   6597 |     VgaReg->MiscOutReg = inb(cPtr->PIOBase + 0x3CC);
        |                          ^~~
  

• ct_driver.c:7245:17: warning: implicit declaration of function 'outl' [-Wimplicit-function-declaration]
   7245 |                 outl(cPtr->PIOBase + DR(0x8), cPtr->HWCursorContents);
        |                 ^~~~
  

• ct_driver.c:7267:42: warning: implicit declaration of function 'inl'; did you mean 'sinl'? [-Wimplicit-function-declaration]
   7267 |                 cPtr->HWCursorContents = inl(cPtr->PIOBase + DR(0x8));
        |                                          ^~~
        |                                          sinl
  

• ct_driver.c:7268:17: warning: implicit declaration of function 'outw'; did you mean 'putw'? [-Wimplicit-function-declaration]
   7268 |                 outw(cPtr->PIOBase + DR(0x8), cPtr->HWCursorContents & 0xFFFE);
        |                 ^~~~
        |                 putw