FIP-52: Increase DAI PCV allocation

Summary

Change the DAI bonding curve parameters to get 50M more DAI in the PCV.

Motivation / Background

We are at a healthy CR of ~300%, but that may change in the future if a bear market comes or if the merge happens and a lot of large TRIBE holders ragequit. To be on the safe side, I’d suggest we get more stablecoins in the PCV, while the protocol is so healthy.

Specification

Current DAI bonding curve parameters :

• mintCap = 150M
• scale = 100M
• discount = 0%
• buffer = 1%

Change to :

• mintCap = 160M
• scale = 150M
• discount = 0%
• buffer = 0.2%