small note to GENERIC for isa dependency

[Roman Kurakin]

Josef El-Rayes wrote:

>hi!
>
>i just noticed that removing 'device isa' with 'device npx' still enabled
>results in a break of the kernel build.
>  
>
Hm, I thought it was fixed. I sew some commits around this.

>as i did not find any hint in GENERIC or NOTES i was wondering whether i should
>wrtie a short hint and if so, how it should look like.
>  
>
>perhaps something like this:
>
>----
>device isa #keep if device npx is enabled.
>  
>
>----
>  
>
May be it is the time to unbreak this?

rik