omap-common: fastboot: extend cpu type for DRA71x rev 2.1

DRA71x processors are reduced pin and software compatible
derivative of DRA72 processors. Extend support for this
revision in "getvar cpu" command.

Signed-off-by: Vishal Mahaveer <vishalm@ti.com>
[praneeth@ti.com: rebase to u-boot master]
Signed-off-by: Praneeth Bajjuri <praneeth@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
diff --git a/arch/arm/mach-omap2/utils.c b/arch/arm/mach-omap2/utils.c
index d4f171b..2bd8290 100644
--- a/arch/arm/mach-omap2/utils.c
+++ b/arch/arm/mach-omap2/utils.c
@@ -33,6 +33,7 @@
 		break;
 	case DRA722_ES1_0:
 	case DRA722_ES2_0:
+	case DRA722_ES2_1:
 		cpu = "DRA722";
 		break;
 	default: