cleanup: resolve nlreturn linter issues

nlreturn linter requires a new line before return
and branch statements except when the return is alone
inside a statement group (such as an if statement) to
increase code clarity. This commit addresses such issues.

Updates: #1586

Signed-off-by: Rakshith R <rar@redhat.com>

internal/util/cephconf.go

@@ -72,5 +72,6 @@ if any ceph commands fails it will log below error message
 // createKeyRingFile creates the keyring files to fix above error message logging.
 func createKeyRingFile() error {
 	_, err := os.Create(keyRing)
+
 	return err
 }