use GPIO0_A2 as PMIC interrupt pin in pinctrl.
(I forgot to fix this part in previous commit.)

Fixes: 02afd3d5 ("arm64: dts: rockchip: fix PMIC interrupt pin on ROCK Pi E")
Signed-off-by: FUKAUMI Naoki <naoki@radxa.com>
Link: https://lore.kernel.org/r/20240722095216.1656081-1-naoki@radxa.comSigned-off-by: Heiko Stuebner <heiko@sntech.de>