arm64: dts: rockchip: fix PMIC interrupt pin on ROCK Pi E

use GPIO0_A2 as interrupt pin for PMIC. GPIO2_A6 was used for
pre-production board.

Fixes: b918e81f

 ("arm64: dts: rockchip: rk3328: Add Radxa ROCK Pi E")
Signed-off-by: FUKAUMI Naoki <naoki@radxa.com>
Link: https://lore.kernel.org/r/20240619050047.1217-1-naoki@radxa.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>