pia-am335x-apc: fix pinmux for UART3 and UART5 TX

Signed-off-by: Björn Krombholz <b.krombholz@pironex.de>
pia-am335x-ebtft: add rev 0.02

Signed-off-by: Björn Krombholz <b.krombholz@pironex.de>