soc: arm: nxp_lpc: lpc55xxx: disabling LPC55S36 IAP support

This is temporary until support has been enabled. lpc55s36's IAP controller
is different and does not match previous implementations.
The Zephyr driver uses a data structure matching the IAP controller to
implement a feature that should normally come out of the ROM.

Since IAP support is not in yet, disabling the option in the SoC's Kconfig
and disabling the node in the device tree is the proper way to go forward.

Signed-off-by: Yves Vandervennet <yves.vandervennet@nxp.com>