arm64: dts: ti: k3-am62x: Rename I2C switch to I2C mux in OV5640 overlay

arm64: dts: ti: k3-am62x: Rename I2C switch to I2C mux in OV5640 overlay

The OV5640 device tree overlay incorrectly defined an I2C switch
instead of an I2C mux. According to the DT bindings, the correct
terminology and node definition should use "i2c-mux" instead of
"i2c-switch". Hence, update the same to avoid dtbs_check warnings.

Fixes: 635ed9715194 ("arm64: dts: ti: k3-am62x: Add overlays for OV5640")
Cc: stable@vger.kernel.org
Signed-off-by: Yemike Abhilash Chandra <y-abhilashchandra@ti.com>
Reviewed-by: Neha Malcom Francis <n-francis@ti.com>
Reviewed-by: Jai Luthra <jai.luthra@linux.dev>
Link: https://lore.kernel.org/r/20250415111328.3847502-8-y-abhilashchandra@ti.com
Signed-off-by: Nishanth Menon <nm@ti.com>