platform/x86/intel/pmc: Fix in pmc_core_ssram_get_pmc()

Passing PMC_IDX_MAIN in pmc_core_pmc_add() adds only primary pmc to pmcdev.
Use pmc_idx instead to add all available pmcs.

Fixes: a01486dc ("platform/x86/intel/pmc: Cleanup SSRAM discovery")
Signed-off-by: Rajvi Jingar <rajvi.jingar@linux.intel.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20231216011702.1976408-1-rajvi.jingar@linux.intel.comSigned-off-by: Hans de Goede <hdegoede@redhat.com>

drivers/platform/x86/intel/pmc/core_ssram.c

@@ -287,7 +287,7 @@ pmc_core_ssram_get_pmc(struct pmc_dev *pmcdev, int pmc_idx, u32 offset)
 	if (!map)
 		return -ENODEV;
 
-	return pmc_core_pmc_add(pmcdev, pwrm_base, map, PMC_IDX_MAIN);
+	return pmc_core_pmc_add(pmcdev, pwrm_base, map, pmc_idx);
 }
 
 int pmc_core_ssram_init(struct pmc_dev *pmcdev)