thermal/drivers/core: Fix typo in the option name

Unlike the other options, the cpu cooling option is beginning
with a lowercase letter, changing to a uppercase.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
diff --git a/drivers/thermal/Kconfig b/drivers/thermal/Kconfig
index d8aa7fa..83e95a4 100644
--- a/drivers/thermal/Kconfig
+++ b/drivers/thermal/Kconfig
@@ -148,7 +148,7 @@
 	  allocating and limiting power to devices.
 
 config CPU_THERMAL
-	bool "generic cpu cooling support"
+	bool "Generic cpu cooling support"
 	depends on CPU_FREQ
 	depends on THERMAL_OF
 	help