arm: dra76: fastboot: extend cpu type for getvar command

'commit fa24eca1f2 ("omap: Add routine for setting fastboot variables")'
adds initial support and usage of "fastboot getvar" command
for DRA75x and DRA72x devices.

and
'commit 0f9e6aee9d ("arm: dra76: Add support for ES1.0 detection")'
adds initial dra76 device definition

This patch is to extend usage of "fastboot getvar" for DRA76 device.

Signed-off-by: Praneeth Bajjuri <praneeth@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>

arch/arm/mach-omap2/utils.c

@@ -26,6 +26,9 @@ static void omap_set_fastboot_cpu(void)
 	u32 cpu_rev = omap_revision();
 
 	switch (cpu_rev) {
+	case DRA762_ES1_0:
+		cpu = "DRA762";
+		break;
 	case DRA752_ES1_0:
 	case DRA752_ES1_1:
 	case DRA752_ES2_0: