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/programs/test/cmake_package/cmake_package.c b/programs/test/cmake_package/cmake_package.c
index 1ae627d..4263bd9 100644
--- a/programs/test/cmake_package/cmake_package.c
+++ b/programs/test/cmake_package/cmake_package.c
@@ -45,5 +45,5 @@
 
     mbedtls_printf( "Built against %s\n", version );
 
-    return( 0 );
+    return 0 ;
 }