Crypto: Fix build warning

encrypted_data_single_shot is only used when
TFM_CRYPTO_TEST_SINGLE_PART_FUNCS is defined.

Signed-off-by: Xinyu Zhang <xinyu.zhang@arm.com>
Change-Id: I4a6a3f0b2ba7cc481b2f32c1133c1f7c3bd82425
1 file changed