arm: dts: imx: fsl-imx8qm.dtsi: fix gpio aliases

arm: dts: imx: fsl-imx8qm.dtsi: fix gpio aliases

Current aliases missed gpio0 node, and this node shoud be
aliased to gpio index 0 to align with i.MX8QXP. Otherwise, we
will get below message when running "gpio status" command, and
see the reason by "dm uclass".

=> gpio status
Device 'gpio@5d090000': seq 0 is in use by 'gpio@5d080000'
Device 'gpio@5d0a0000': seq 1 is in use by 'gpio@5d090000'
Device 'gpio@5d0b0000': seq 2 is in use by 'gpio@5d0a0000'

=> dm uclass
uclass 36: gpio
0   * gpio@5d080000 @ fbaefb90, seq 0, (req -1)
1   * gpio@5d090000 @ fbaefc70, seq 1, (req 0)
2   * gpio@5d0a0000 @ fbaefd50, seq 2, (req 1)
3   * gpio@5d0b0000 @ fbaefe30, seq 5, (req 2)
4   * gpio@5d0c0000 @ fbaeff10, seq 3, (req 3)
5   * gpio@5d0d0000 @ fbaefff0, seq 4, (req 4)
6   * gpio@5d0e0000 @ fbaf00d0, seq 6, (req 5)
7   * gpio@5d0f0000 @ fbaf01b0, seq 7, (req 6)

Signed-off-by: Ye Li <ye.li@nxp.com>