dt-bindings: opp: Add missing compat devices

A number of devices listed in drivers/cpufreq/qcom-cpufreq-nvmem.c appear
to be missing from the compatible list.

Cc: ilia.lin@kernel.org
Cc: robh+dt@kernel.org
Cc: krzk+dt@kernel.org
Cc: devicetree@vger.kernel.org
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>