TZ NS Agent: Call "psa_panic()" for handling reentrant

Patch [1] assigns the ABI type of psa_panic() for callers according to
callers' operation mode. As a result, TZ NS Agent does not need to call
SVCall to invoke psa_panic() anymore. Change TZ NS Agent interfaces to
call psa_panic() directly.

[1]: https://review.trustedfirmware.org/c/TF-M/trusted-firmware-m/+/22287

Signed-off-by: Jianliang Shen <jianliang.shen@arm.com>
Co-authored-by: Xinyu Zhang <Xinyu.Zhang@arm.com>
Change-Id: I9da83864a90320cab50e6d793aa5f0247a744c0f
1 file changed