docs: hwmon: menf21bmc: convert to ReST format

Convert menf21bmc to ReST format, in order to allow it to
be parsed by Sphinx.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>

Documentation/hwmon/menf21bmc

@@ -2,8 +2,11 @@ Kernel driver menf21bmc_hwmon
 =============================
 
 Supported chips:
+
 	* MEN 14F021P00
+
 	  Prefix: 'menf21bmc_hwmon'
+
 	  Adresses scanned: -
 
 Author: Andreas Werner <andreas.werner@men.de>
@@ -34,6 +37,7 @@ Sysfs entries
 The following attributes are supported. All attributes are read only
 The Limits are read once by the driver.
 
+=============== ==========================
 in0_input	+3.3V input voltage
 in1_input	+5.0V input voltage
 in2_input	+12.0V input voltage
@@ -48,3 +52,4 @@ in1_label	"MON_5V"
 in2_label	"MON_12V"
 in3_label	"5V_STANDBY"
 in4_label	"VBAT"
+=============== ==========================