arm: mach-k3: Kconfig: Sort SOC_K3 config entries

Sort SOC_K3 config entries in alphabetical order
for clean up.

Signed-off-by: Apurva Nandan <a-nandan@ti.com>
Reviewed-by: Roger Quadros <rogerq@kernel.org>
Tested-by: Marcel Ziswiler <marcel.ziswiler@toradex.com> # AM69-SK