Platform: corstone1000: Fix Compilation issue due to spm_params new field

spm_params is defined as a struct in psa_client_secure_lib for corstone1000,
thus needs to be accessied with a dot.

Signed-off-by: Emekcan Aras <emekcan.aras@arm.com>
Change-Id: I62dcc172195a24b22670f5da2384528d73782c1b
1 file changed