Rather than parsing the I/O addresses from dp_parser and then passing
them via a struct pointer to dp_catalog, handle I/O region parsing in
dp_catalog and drop it from dp_parser.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Tested-by: Kuogee Hsieh <quic_khsieh@quicinc.com>
Reviewed-by: Kuogee Hsieh <quic_khsieh@quicinc.com>
Patchwork: https://patchwork.freedesktop.org/patch/576108/
Link: https://lore.kernel.org/r/20240126-dp-power-parser-cleanup-v3-12-098d5f581dd3@linaro.org