Add the other LDOs that our rpmh driver can currently support. Some of
these are used on the RB5 to power the sdcard.
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Tested-by: Amit Pundir <amit.pundir@linaro.org>
Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>