arm64: dts: ti: k3-am62x: Rename I2C switch to I2C mux in IMX219 overlay

arm64: dts: ti: k3-am62x: Rename I2C switch to I2C mux in IMX219 overlay

The IMX219 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: 4111db03dc05 ("arm64: dts: ti: k3-am62x: Add overlay for IMX219")
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/20250415111328.3847502-7-y-abhilashchandra@ti.com
Signed-off-by: Nishanth Menon <nm@ti.com>