icnss2: Enable S1J for volcano

Enable S1J for volcano.

Change-Id: I6da9d1654607dd57e66b76f6925b424953ec8a3c
CRs-Fixed: 3754364

icnss2/power.c

@@ -21,6 +21,7 @@ static struct icnss_vreg_cfg icnss_wcn6750_vreg_list[] = {
 	{"vdd-cx-mx", 824000, 952000, 0, 0, 0, false, true},
 	{"vdd-1.8-xo", 1872000, 1872000, 0, 0, 0, false, true},
 	{"vdd-1.3-rfa", 1256000, 1352000, 0, 0, 0, false, true},
+	{"vdd-ipa-2p2", 2200000, 2200000, 0, 0, 0, false, true},
 };
 
 static struct icnss_vreg_cfg icnss_adrestea_vreg_list[] = {