hwmon: Driver for Nuvoton NCT7802Y

NCT7802Y is an I2C based hardware monitoring chip from Nuvoton.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>

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+Kernel driver nct7802
+=====================
+
+Supported chips:
+  * Nuvoton NCT7802Y
+    Prefix: 'nct7802'
+    Addresses scanned: I2C 0x28..0x2f
+    Datasheet: Available from Nuvoton web site
+
+Authors:
+        Guenter Roeck <linux@roeck-us.net>
+
+Description
+-----------
+
+This driver implements support for the Nuvoton NCT7802Y hardware monitoring
+chip. NCT7802Y supports 6 temperature sensors, 5 voltage sensors, and 3 fan
+speed sensors.
+
+The chip also supports intelligent fan speed control. This functionality is
+not currently supported by the driver.
+
+Tested Boards and BIOS Versions
+-------------------------------
+
+The driver has been reported to work with the following boards and
+BIOS versions.
+
+Board                   BIOS version
+---------------------------------------------------------------
+Kontron COMe-bSC2       CHR2E934.001.GGO
+Kontron COMe-bIP2       CCR2E212