airoha: en7581: dts: fix typo "disable"

airoha: en7581: dts: fix typo "disable"

No functional changes intended.

Fixes warning:
/linux/arch/arm64/boot/dts/airoha/en7581-gemtek-w1700k.dtb: i2c1@1fbf8100 (mediatek,mt7621-i2c): status: 'oneOf' conditional failed, one must be fixed:
	['disable'] is not of type 'object'
	'disable' is not one of ['okay', 'disabled', 'reserved', 'fail', 'fail-needs-probe']
	from schema $id: http://devicetree.org/schemas/dt-core.yaml#

Signed-off-by: Aleksander Jan Bajkowski <[email protected]>
Link: https://github.com/openwrt/openwrt/pull/20131
Signed-off-by: Robert Marko <[email protected]>