arm64: dts: ti: k3-am65-main: Fix mcan node name

s/mcan/can to stay in sync with bindings conventions.

Signed-off-by: Nishanth Menon <nm@ti.com>
Link: https://lore.kernel.org/r/20230607132043.3932726-2-nm@ti.com


Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>