remoteproc: fix checkpatch errors in remoteproc code

This patch fixes relevant checkpatch errors and warnings
in the remoteproc source files.

Signed-off-by: Suman Anna <s-anna@ti.com>
[drop 80-char-lines checkpatch fixes and update commit log accordingly]
Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>

drivers/remoteproc/remoteproc_debugfs.c

@@ -248,6 +248,5 @@ void __init rproc_init_debugfs(void)
 
 void __exit rproc_exit_debugfs(void)
 {
-	if (rproc_dbg)
-		debugfs_remove(rproc_dbg);
+	debugfs_remove(rproc_dbg);
 }