led: remove camel casing of led identifiers globally

Result of running the following command to address Wolfgang's
comment about camel case:

for file in `find . | grep '\.[chS]$'`; do perl -i -pe
's/(green|yellow|red|blue)_LED_(on|off)/$1_led_$2/g' $file; done

Discussion:
http://patchwork.ozlabs.org/patch/84988/

Signed-off-by: Jason Kridner <jkridner@beagleboard.org>
Signed-off-by: Joel A Fernandes <agnel.joel@gmail.com>
Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
diff --git a/board/ti/beagle/led.c b/board/ti/beagle/led.c
index 1779242..ac21a95 100644
--- a/board/ti/beagle/led.c
+++ b/board/ti/beagle/led.c
@@ -29,12 +29,12 @@
 #define BEAGLE_LED_USR1	149
 
 #ifdef STATUS_LED_GREEN
-void green_LED_off (void)
+void green_led_off(void)
 {
 	__led_set (STATUS_LED_GREEN, 0);
 }
 
-void green_LED_on (void)
+void green_led_on(void)
 {
 	__led_set (STATUS_LED_GREEN, 1);
 }