nimble/controller: Enable Connection Parameters Request procedure
nimble/controller: Enable Connection Parameters Request procedure

We support it so there is no reason to have it disabled.

X-Original-Commit: dc44ca021a0fb6755bcdd7987d880a427ff465f2

apache/mynewt-nimble,apache/mynewt-nimble,apache/mynewt-nimble,apache/mynewt-nimble,apache/mynewt-nimble