arm: tegra: add AP20 and AP20H SKU

Add previously undocumented SKU - AP20H found in LG Optimus 2X (P990).
Correct existing T20_7 name as it's proper name is AP20.

Signed-off-by: Ion Agorria <ion@agorria.com>
Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>
diff --git a/arch/arm/mach-tegra/ap.c b/arch/arm/mach-tegra/ap.c
index a987522..f35bdba 100644
--- a/arch/arm/mach-tegra/ap.c
+++ b/arch/arm/mach-tegra/ap.c
@@ -58,8 +58,9 @@
 	switch (chip_id) {
 	case CHIPID_TEGRA20:
 		switch (sku_id) {
-		case SKU_ID_T20_7:
+		case SKU_ID_AP20:
 		case SKU_ID_T20:
+		case SKU_ID_AP20H:
 			return TEGRA_SOC_T20;
 		case SKU_ID_T25SE:
 		case SKU_ID_AP25: