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/tests/include/test/drivers/cipher.h b/tests/include/test/drivers/cipher.h
index 142f3b7..8dbee92 100644
--- a/tests/include/test/drivers/cipher.h
+++ b/tests/include/test/drivers/cipher.h
@@ -44,7 +44,7 @@
      mbedtls_test_driver_cipher_hooks_init( void )
 {
     const mbedtls_test_driver_cipher_hooks_t v = MBEDTLS_TEST_DRIVER_CIPHER_INIT;
-    return( v );
+    return v ;
 }
 
 extern mbedtls_test_driver_cipher_hooks_t mbedtls_test_driver_cipher_hooks;