Fixes bugs in the bigip_software modules (#45577)

This patch makes hotfix code work, where before, only base images
were working

lib/ansible/modules/network/f5/bigip_software_image.py

@@ -285,7 +285,7 @@ class ModuleManager(object):
             return self.create()
 
     def exists(self):
-        if self.image_exists() or self.image_exists():
+        if self.image_exists() or self.hotfix_exists():
             return True
         return False
 
@@ -408,7 +408,7 @@ class ModuleManager(object):
         except ValueError as ex:
             raise F5ModuleError(str(ex))
 
-        if 'code' in response and response['code'] == 400:
+        if 'code' in response and response['code'] in [400, 404]:
             if 'message' in response:
                 raise F5ModuleError(response['message'])
             else:
@@ -438,7 +438,7 @@ class ModuleManager(object):
         response = self.client.api.delete(uri)
         if response.status == 200:
             return True
-        if 'code' in response and response['code'] == 400:
+        if 'code' in response and response['code'] in [400, 404]:
             if 'message' in response:
                 raise F5ModuleError(response['message'])
             else:

lib/ansible/modules/network/f5/bigip_software_install.py

@@ -188,7 +188,7 @@ class ModuleParameters(Parameters):
         image = self.read_image_from_device(type='image')
         if image:
             return image
-        image = self.read_hotfix_from_device(type='hotfix')
+        image = self.read_image_from_device(type='hotfix')
         if image:
             return image
         return None
@@ -206,10 +206,7 @@ class ModuleParameters(Parameters):
         except ValueError:
             return None
 
-        if 'code' in response and response['code'] == 400:
-            if 'message' in response:
-                return None
-            else:
+        if 'code' in response and response['code'] in [400, 404]:
             return None
         return response