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/mps_trace.h b/library/mps_trace.h
index 7c23601..f6786d4 100644
--- a/library/mps_trace.h
+++ b/library/mps_trace.h
@@ -159,7 +159,7 @@
         /* Breaks tail recursion. */            \
         int ret__ = val;                        \
         MBEDTLS_MPS_TRACE_END( ret__ );         \
-        return( ret__ );                        \
+        return ret__ ;                        \
     } while( 0 )
 
 #else /* MBEDTLS_MPS_TRACE */
@@ -168,7 +168,7 @@
 #define MBEDTLS_MPS_TRACE_INIT( ... )  do { } while( 0 )
 #define MBEDTLS_MPS_TRACE_END          do { } while( 0 )
 
-#define MBEDTLS_MPS_TRACE_RETURN( val ) return( val );
+#define MBEDTLS_MPS_TRACE_RETURN( val ) return val ;
 
 #endif /* MBEDTLS_MPS_TRACE */