Do not auto-connect bluetooth

[lexxxel]

I have multiple bluetooth profiles configured (e.g. 1: PC, 2: Android Phone), but I only want the keyboard to be connected to the selected profile (1). The reason is, that android either hides the onscreen keyboard - or, if configured the other way around, always showing the onscreen keyboard. That is super annoying if I do not want to use the keyboard to write any text.

Is there a flag or anything, that I could use to only keep 1 connection open at a time?

Note: CONFIG_BT_MAX_CONN is not an option, because I set it to 2, but that results in a race between the two configured profiles and the right half of the keyboard (I have a split keyboard). I have to spam the disconnect Profile X button and hope it connects to the other half first. That might work with 2 Profiles, but with 3, it will fail for sure.

[caksoylar]

Related: #1998, #2081