arm64: dts: ti: k3-am62l: include WKUP_UART0 in wakeup peripheral window

arm64: dts: ti: k3-am62l: include WKUP_UART0 in wakeup peripheral window

WKUP_UART0 is apart of the wakeup peripherals and has a range from
0x002B300000 to 0x002B3001FF. Expand the wakeup peripheral window to
include WKUP_UART0.

Fixes: 5f016758b0ab ("arm64: dts: ti: k3-am62l: add initial infrastructure")
Reviewed-by: Dhruva Gole <d-gole@ti.com>
Signed-off-by: Kendall Willis <k-willis@ti.com>
Link: https://patch.msgid.link/20260219-v6-19-wkup-uart-wakeup-v4-1-eda09dce5623@ti.com
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>