drivers: stm32_saes: remove probe verification on base address.

An assert was used to ensure we only probe one instance of SAES.
It can create an error if the probe is deferred.
Remove assert as it can create an error and the probe will fail when
registering in the crypto framework.

Fixes: 4320f5c ("crypto: stm32: SAES cipher support")
Signed-off-by: Thomas Bourgoin <thomas.bourgoin@foss.st.com>

core/drivers/crypto/stm32/stm32_saes.c

@@ -1428,9 +1428,7 @@ static TEE_Result stm32_saes_pm(enum pm_op op, uint32_t pm_hint,
 static TEE_Result stm32_saes_probe(const void *fdt, int node,
 				   const void *compat_data __unused)
 {
-	TEE_Result res = TEE_SUCCESS;
-
-	assert(!saes_pdata.base);
+	TEE_Result res = TEE_ERROR_GENERIC;
 
 	res = stm32_saes_parse_fdt(&saes_pdata, fdt, node);
 	if (res)