ARM: DRA7: Add detection of ES2.0

Add support for detection of ES2.0 version of DRA7 family of
processors. ES2.0 is an incremental revision with various fixes
including the following:
- reset logic fixes
- few assymetric aging logic fixes
- MMC clock rate fixes
- Ethernet speed fixes
- edma fixes for mcasp

[ravibabu@ti.com: posted internal for an older bootloader]
Signed-off-by: Ravi Babu <ravibabu@ti.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Acked-by: Lokesh Vutla <lokeshvutla@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
diff --git a/arch/arm/cpu/armv7/omap5/hw_data.c b/arch/arm/cpu/armv7/omap5/hw_data.c
index 33f92b7e..a2d9cc8 100644
--- a/arch/arm/cpu/armv7/omap5/hw_data.c
+++ b/arch/arm/cpu/armv7/omap5/hw_data.c
@@ -684,6 +684,7 @@
 
 	case DRA752_ES1_0:
 	case DRA752_ES1_1:
+	case DRA752_ES2_0:
 	*prcm = &dra7xx_prcm;
 	*dplls_data = &dra7xx_dplls;
 	*omap_vcores = &dra752_volts;
@@ -719,6 +720,7 @@
 		break;
 	case DRA752_ES1_0:
 	case DRA752_ES1_1:
+	case DRA752_ES2_0:
 		*regs = &ioregs_dra7xx_es1;
 		break;
 	case DRA722_ES1_0: