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/padlock.c b/library/padlock.c
index b8ba105..a034238 100644
--- a/library/padlock.c
+++ b/library/padlock.c
@@ -65,7 +65,7 @@
         flags = edx;
     }
 
-    return( flags & feature );
+    return flags & feature ;
 }
 
 /*
@@ -105,7 +105,7 @@
 
     memcpy( output, blk, 16 );
 
-    return( 0 );
+    return 0 ;
 }
 
 /*
@@ -127,7 +127,7 @@
 
     if( ( (long) input  & 15 ) != 0 ||
         ( (long) output & 15 ) != 0 )
-        return( MBEDTLS_ERR_PADLOCK_DATA_MISALIGNED );
+        return MBEDTLS_ERR_PADLOCK_DATA_MISALIGNED ;
 
     rk = ctx->rk;
     iw = MBEDTLS_PADLOCK_ALIGN16( buf );
@@ -156,7 +156,7 @@
 
     memcpy( iv, iw, 16 );
 
-    return( 0 );
+    return 0 ;
 }
 
 #endif /* MBEDTLS_HAVE_X86 */