mfd: wm8997: Make Kconfig prompt for WM8997 more consistent

The Kconfig prompt for WM8997 says "Support for..." while the other MFD
Kconfigs (including the adjacent ones for other Arizona devices) just
list the device name which sticks out like a sore thumb when doing
configuration.
Signed-off-by: Mark Brown <broonie@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

drivers/mfd/Kconfig

@@ -1070,7 +1070,7 @@ config MFD_WM5110
 	  Support for Wolfson Microelectronics WM5110 low power audio SoC
 
 config MFD_WM8997
-	bool "Support Wolfson Microelectronics WM8997"
+	bool "Wolfson Microelectronics WM8997"
 	depends on MFD_ARIZONA
 	help
 	  Support for Wolfson Microelectronics WM8997 low power audio SoC