ti_armv7_common: env: Fix hard coded mmc device for uuid

Avoid use of hard coded mmcdev value, use bootpart
instead, so finduuid works based on bootpart set
for a specific platform.

Signed-off-by: Ravi Babu <ravibabu@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
1 file changed