arm64: dts: librem5: Add bucket to opp points table

Only with that the we can reduce VDD_ARM to 0.9V at runtime.

Signed-off-by: Guido Günther <guido.gunther@puri.sm>
2 jobs for mrs/cpu-dvfs in 46 minutes and 39 seconds
Status Job ID Name Coverage
  Build
passed #248734
librem5
build:aarch64

00:24:27

passed #248735
librem5:arm64
build:deb

00:46:39