fix deprecated wrappers exiting bug (#567)

Author: RyanXLi

mmcv/ops/deprecated_wrappers.py

@@ -7,7 +7,7 @@
 
 class Conv2d_deprecated(Conv2d):
 
-    def __init__(*args, **kwargs):
+    def __init__(self, *args, **kwargs):
         super().__init__(*args, **kwargs)
         warnings.warn(
             'Importing Conv2d wrapper from "mmcv.ops" will be deprecated in'
@@ -16,7 +16,7 @@ def __init__(*args, **kwargs):
 
 class ConvTranspose2d_deprecated(ConvTranspose2d):
 
-    def __init__(*args, **kwargs):
+    def __init__(self, *args, **kwargs):
         super().__init__(*args, **kwargs)
         warnings.warn(
             'Importing ConvTranspose2d wrapper from "mmcv.ops" will be '
@@ -26,7 +26,7 @@ def __init__(*args, **kwargs):
 
 class MaxPool2d_deprecated(MaxPool2d):
 
-    def __init__(*args, **kwargs):
+    def __init__(self, *args, **kwargs):
         super().__init__(*args, **kwargs)
         warnings.warn(
             'Importing MaxPool2d wrapper from "mmcv.ops" will be deprecated in'
@@ -35,7 +35,7 @@ def __init__(*args, **kwargs):
 
 class Linear_deprecated(Linear):
 
-    def __init__(*args, **kwargs):
+    def __init__(self, *args, **kwargs):
         super().__init__(*args, **kwargs)
         warnings.warn(
             'Importing Linear wrapper from "mmcv.ops" will be deprecated in'