pmdomain: mediatek: Fix power domain count

The wrong value of the number of domains is wrong which leads to
failures when trying to enumerate nested power domains.

PM: genpd_xlate_onecell: invalid domain index 0
PM: genpd_xlate_onecell: invalid domain index 1
PM: genpd_xlate_onecell: invalid domain index 3
PM: genpd_xlate_onecell: invalid domain index 4
PM: genpd_xlate_onecell: invalid domain index 5
PM: genpd_xlate_onecell: invalid domain index 13
PM: genpd_xlate_onecell: invalid domain index 14

Attempts to use these power domains fail, so fix this by
using the correct value of calculated power domains.

Signed-off-by: Adam Ford <[e-mail]>
Fixes: 88914db077b6 ("pmdomain: mediatek: Add support for Hardware Voter power domains")
Reviewed-by: AngeloGioacchino Del Regno <[e-mail]>
Cc: [e-mail]
Signed-off-by: Ulf Hansson <[e-mail]>

drivers/pmdomain/mediatek/mtk-pm-domains.c

···
 	scpsys->soc_data = soc;
 
 	scpsys->pd_data.domains = scpsys->domains;
-	scpsys->pd_data.num_domains = soc->num_domains;
+	scpsys->pd_data.num_domains = num_domains;
 
 	parent = dev->parent;
 	if (!parent) {