arm: mach-k3: j721s2: clk-data.c: Add main_uart5 clock data

arm: mach-k3: j721s2: clk-data.c: Add main_uart5 clock data

Add main_uart5 clocks in clk-data.c for J721S2. Now,
main_uart5 clocks will be set up while booting the J721S2 SoC.

Signed-off-by: Bhavya Kapoor <b-kapoor@ti.com>
Reviewed-by: Bryan Brattlof <bb@ti.com>