arch: arm: mach-k3: Delete tifs node in DT fixup

arch: arm: mach-k3: Delete tifs node in DT fixup

Delete tifs DT node as part of fixup.

TISCI API reported msmc_size, does not include 64KB reserved size for
tifs aka MSMC comms memory, see documentation[0].

As part of fixup, original code uses TISCI API reported msmc_size as
size for SRAM DT node.

tifs node is similar to l3-cache, which should hold address above
msmc_size, and should be deleted before passing control to OS.

[0] https://software-dl.ti.com/tisci/esd/latest/2_tisci_msgs/general/core.html?highlight=msmc#tisci-msg-query-msmc

Reviewed-by: Neha Malcom Francis <[email protected]>
Signed-off-by: Udit Kumar <[email protected]>