modules: hostap: Set WIFI_NM_WPA_SUPPLICANT_CRYPTO_ALT as crypto

Set WIFI_NM_WPA_SUPPLICANT_CRYPTO_ALT as the default crypto
configuration. The crypto ALT implementation contains the necessary
crypto operations and also allows the user to choose PSA or non PSA
crypto operation.

Signed-off-by: Vivekananda Uppunda <vivekananda.uppunda@nordicsemi.no>