Merge pull request #3802 from liuduanfei/master

Change I2C configuration hierarchy

components/drivers/Kconfig

@@ -95,12 +95,12 @@ if RT_USING_I2C
     config RT_USING_I2C_BITOPS
         bool "Use GPIO to simulate I2C"
         default y
-endif
 
-if RT_USING_I2C_BITOPS
-    config RT_I2C_BITOPS_DEBUG
-        bool "Use simulate I2C debug message"
-        default n
+    if RT_USING_I2C_BITOPS
+	config RT_I2C_BITOPS_DEBUG
+            bool "Use simulate I2C debug message"
+            default n
+    endif
 endif
 
 config RT_USING_PIN