Fix parantheses on return and sizeof statements.

Used script:
```
import re
import sys

for arg in sys.argv[1:]:
    print(arg)
    with open(arg, 'r') as file:
        content = file.read()
        content = re.sub(r"return\s?\((?!.*\).*\()\s*\n?(.*)\n?\);", r"return \1;", \
            content, flags = re.M)
        content = re.sub(r"sizeof ([^\(][a-zA-Z0-9_\[\]]*)", r"sizeof(\1)",\
            content, flags = re.M)
    with open(arg, 'w') as file:
        file.write(content)

```
Executed with:
` find . -regextype posix-egrep -regex ".*\.([hc]|fmt|function)" | xargs -L1 python script.py`

Signed-off-by: Mateusz Starzyk <mateusz.starzyk@mobica.com>
diff --git a/library/psa_its_file.c b/library/psa_its_file.c
index 492be1c..106d1c3 100644
--- a/library/psa_its_file.c
+++ b/library/psa_its_file.c
@@ -100,14 +100,14 @@
     psa_its_fill_filename( uid, filename );
     *p_stream = fopen( filename, "rb" );
     if( *p_stream == NULL )
-        return( PSA_ERROR_DOES_NOT_EXIST );
+        return PSA_ERROR_DOES_NOT_EXIST ;
 
     n = fread( &header, 1, sizeof( header ), *p_stream );
     if( n != sizeof( header ) )
-        return( PSA_ERROR_DATA_CORRUPT );
+        return PSA_ERROR_DATA_CORRUPT ;
     if( memcmp( header.magic, PSA_ITS_MAGIC_STRING,
                 PSA_ITS_MAGIC_LENGTH ) != 0 )
-        return( PSA_ERROR_DATA_CORRUPT );
+        return PSA_ERROR_DATA_CORRUPT ;
 
     p_info->size = ( header.size[0] |
                      header.size[1] << 8 |
@@ -117,7 +117,7 @@
                       header.flags[1] << 8 |
                       header.flags[2] << 16 |
                       header.flags[3] << 24 );
-    return( PSA_SUCCESS );
+    return PSA_SUCCESS ;
 }
 
 psa_status_t psa_its_get_info( psa_storage_uid_t uid,
@@ -128,7 +128,7 @@
     status = psa_its_read_file( uid, p_info, &stream );
     if( stream != NULL )
         fclose( stream );
-    return( status );
+    return status ;
 }
 
 psa_status_t psa_its_get( psa_storage_uid_t uid,
@@ -176,7 +176,7 @@
 exit:
     if( stream != NULL )
         fclose( stream );
-    return( status );
+    return status ;
 }
 
 psa_status_t psa_its_set( psa_storage_uid_t uid,
@@ -235,7 +235,7 @@
      * temporary file doesn't exist and so remove() is expected to fail.
      * Thus we just ignore the return status of remove(). */
     (void) remove( PSA_ITS_STORAGE_TEMP );
-    return( status );
+    return status ;
 }
 
 psa_status_t psa_its_remove( psa_storage_uid_t uid )
@@ -245,11 +245,11 @@
     psa_its_fill_filename( uid, filename );
     stream = fopen( filename, "rb" );
     if( stream == NULL )
-        return( PSA_ERROR_DOES_NOT_EXIST );
+        return PSA_ERROR_DOES_NOT_EXIST ;
     fclose( stream );
     if( remove( filename ) != 0 )
-        return( PSA_ERROR_STORAGE_FAILURE );
-    return( PSA_SUCCESS );
+        return PSA_ERROR_STORAGE_FAILURE ;
+    return PSA_SUCCESS ;
 }
 
 #endif /* MBEDTLS_PSA_ITS_FILE_C */