hwmon: (lm78/w83781d) Probe fewer I2C addresses

We've never seen any device supported by the lm78 or w83781d driver at
addresses 0x20-0x27, so let's stop probing these addresses. Extra probes cost
time, and have potential for confusing or misdetecting other I2C devices.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Mark M. Hoffman <mhoffman@lightlink.com>
diff --git a/Documentation/hwmon/lm78 b/Documentation/hwmon/lm78
index dfc318a..60932e2 100644
--- a/Documentation/hwmon/lm78
+++ b/Documentation/hwmon/lm78
@@ -4,12 +4,12 @@
 Supported chips:
   * National Semiconductor LM78 / LM78-J
     Prefix: 'lm78'
-    Addresses scanned: I2C 0x20 - 0x2f, ISA 0x290 (8 I/O ports)
+    Addresses scanned: I2C 0x28 - 0x2f, ISA 0x290 (8 I/O ports)
     Datasheet: Publicly available at the National Semiconductor website
                http://www.national.com/
   * National Semiconductor LM79
     Prefix: 'lm79'
-    Addresses scanned: I2C 0x20 - 0x2f, ISA 0x290 (8 I/O ports)
+    Addresses scanned: I2C 0x28 - 0x2f, ISA 0x290 (8 I/O ports)
     Datasheet: Publicly available at the National Semiconductor website
                http://www.national.com/