psa: Fix style in psa_hrng.c

Author: Patater

features/mbedtls/platform/TARGET_PSA/COMPONENT_NSPE/src/psa_hrng.c

@@ -34,13 +34,13 @@ MBED_WEAK void trng_free(trng_t *obj)
 
 MBED_WEAK int trng_get_bytes(trng_t *obj, uint8_t *output, size_t length, size_t *output_length)
 {
-   ((void)(obj));
-    if (output == NULL || output_length == NULL){
+    ((void)(obj));
+    if (output == NULL || output_length == NULL) {
         return -1;
     }
 
     psa_status_t status = psa_crypto_init();
-    if(status != PSA_SUCCESS) {
+    if (status != PSA_SUCCESS) {
         return -1;
     }