macintosh: Fix Kconfig indentation

Adjust indentation from spaces to tab (+optional two spaces) as in
coding style with command like:
	$ sed -e 's/^        /\t/' -i */Kconfig

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20191120134115.14918-1-krzk@kernel.org

drivers/macintosh/Kconfig

@@ -178,7 +178,7 @@ config THERM_ADT746X
 	depends on I2C && I2C_POWERMAC && PPC_PMAC && !PPC_PMAC64
 	help
 	  This driver provides some thermostat and fan control for the
-          iBook G4, and the ATI based aluminium PowerBooks, allowing slightly
+	  iBook G4, and the ATI based aluminium PowerBooks, allowing slightly
 	  better fan behaviour by default, and some manual control.
 
 config WINDFARM
@@ -214,7 +214,7 @@ config WINDFARM_PM91
 	select I2C_POWERMAC
 	help
 	  This driver provides thermal control for the PowerMac9,1
-          which is the recent (SMU based) single CPU desktop G5
+	  which is the recent (SMU based) single CPU desktop G5
 
 config WINDFARM_PM112
 	tristate "Support for thermal management on PowerMac11,2"
@@ -242,7 +242,7 @@ config PMAC_RACKMETER
 	depends on PPC_PMAC
 	help
 	  This driver provides some support to control the front panel
-          blue LEDs "vu-meter" of the XServer macs.
+	  blue LEDs "vu-meter" of the XServer macs.
 
 config SENSORS_AMS
 	tristate "Apple Motion Sensor driver"