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/suites/target_test.function b/tests/suites/target_test.function
index 637a79d..3d0bc80 100644
--- a/tests/suites/target_test.function
+++ b/tests/suites/target_test.function
@@ -54,9 +54,9 @@
     for ( i = 0; i < count; i++ )
     {
         if ( dep_check( (int)(dep_p[i]) ) != DEPENDENCY_SUPPORTED )
-            return( DEPENDENCY_NOT_SUPPORTED );
+            return DEPENDENCY_NOT_SUPPORTED ;
     }
-    return( DEPENDENCY_SUPPORTED );
+    return DEPENDENCY_SUPPORTED ;
 }
 
 /**
@@ -80,7 +80,7 @@
                                                c, &len ) == 0 );
     TEST_HELPER_ASSERT( len != 2 );
 
-    return( byte );
+    return byte ;
 }
 
 /**
@@ -111,7 +111,7 @@
                                                c, &len ) == 0 );
     TEST_HELPER_ASSERT( len != 8 );
 
-    return( value );
+    return value ;
 }
 
 /**
@@ -129,7 +129,7 @@
     value |= *p++ << 16;
     value |= *p++ << 8;
     value |= *p;
-    return( value );
+    return value ;
 }
 
 
@@ -157,7 +157,7 @@
             continue;
         i++;
         if ( c != '{' )
-            return( NULL );
+            return NULL ;
     }
 
     /* Read data length */
@@ -188,7 +188,7 @@
         *data_len = 0;
     }
 
-    return( data );
+    return data ;
 }
 
 /**
@@ -230,7 +230,7 @@
         }
     }
 
-    return( hex_count );
+    return hex_count ;
 }
 
 /**
@@ -317,7 +317,7 @@
         params = NULL;
     }
 
-    return( params );
+    return params ;
 }
 
 /**
@@ -444,6 +444,6 @@
         else
             send_status( mbedtls_test_info.result );
     }
-    return( 0 );
+    return 0 ;
 }