i2c: Inform about deprecated chips directory

The chips directory under drivers/i2c is deprecated. Spread the word!

Signed-off-by: Wolfram Sang <[e-mail]>
Signed-off-by: Jean Delvare <[e-mail]>

drivers/i2c/chips/Kconfig

···
 #
 # Miscellaneous I2C chip drivers configuration
 #
+# *** DEPRECATED! Do not add new entries! See Makefile ***
+#
 
 menu "Miscellaneous I2C Chip support"
 

drivers/i2c/chips/Makefile

···
 #
 # Makefile for miscellaneous I2C chip drivers.
 #
-# Think twice before you add a new driver to this directory.
+# Do not add new drivers to this directory! It is DEPRECATED.
+#
 # Device drivers are better grouped according to the functionality they
 # implement rather than to the bus they are connected to. In particular:
 # * Hardware monitoring chip drivers go to drivers/hwmon