rtos: rename CamelCase symbols

Only one exported symbol from eCos is included in this patch.
The eCos code is left untouched to prevent conflicts with patches
currently under review.

While there, remove an unused camelcase macro

Change-Id: I8d22dec6e243c00665d99a8b8ba00474b4f088db
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: http://openocd.zylin.com/6305
Tested-by: jenkins
Reviewed-by: Marc Schink <dev@zapb.de>

src/rtos/eCos.c

@@ -84,7 +84,7 @@ static const char * const eCos_symbol_list[] = {
 	NULL
 };
 
-const struct rtos_type eCos_rtos = {
+const struct rtos_type ecos_rtos = {
 	.name = "eCos",
 
 	.detect_rtos = eCos_detect_rtos,