Change in coreboot[master]: soc/mediatek/mt8186: Add GPIO driving functions

[Yu-Ping Wu (Code Review)]

Attention is currently required from: Hung-Te Lin, Rex-BC Chen, Angel Pons.
Yu-Ping Wu has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/62471 )

Change subject: soc/mediatek/mt8186: Add GPIO driving functions
......................................................................

Patch Set 9:

(3 comments)

File src/soc/mediatek/mt8186/gpio.c:

https://review.coreboot.org/c/coreboot/+/62471/comment/82292ba3_df74c050 
PS9, Line 203: { 0, 0, 0, }
Let's define

#define GPIO_NOT_IMPLEMENTED ((struct gpio_drv_info){ 0, 0, 0 })

https://review.coreboot.org/c/coreboot/+/62471/comment/989ff6dd_29d0b091 
PS9, Line 483: (
No need for parentheses.

https://review.coreboot.org/c/coreboot/+/62471/comment/08370ea0_2fd3fbef 
PS9, Line 488: (
No need for parentheses.