colibri_t20: enable early pmic rail configuration

Rather than enable this with yet another CONFIG_ option, perhaps we can put this code into a C file dedicated to the colibri_t20 board, and then have the common code call it (and implement a weak function that does nothing to satisfy the linker on other boards).

Quoted 4 lines · Stephen Warren

Rather than enable this with yet another CONFIG_ option, perhaps we can put this code into a C file dedicated to the colibri_t20 board, and then have the common code call it (and implement a weak function that does nothing to satisfy the linker on other boards).

I'm fine with that but during my initial investigation I noticed that there are at least 3 to 4 different ways how the early PMIC configuration could be realised just within the Tegra's and your proposal is not even one of them.