[ARM] 4938/1: [CSB637] Convert heartbeat LED to gpio-leds

Converts the D1/PB2 LED to use the gpio-leds API and heartbeat trigger.

Signed-off-by: Bill Gatliff <bgat@billgatliff.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
1 file changed