qemu-log: Rename cpu_str_to_log_mask to qemu_str_to_log_mask

Rename cpu_str_to_log_mask() to qemu_str_to_log_mask(), since
the qemu_log functionality is no longer restricted to TCG CPU
debug logging.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
diff --git a/monitor.c b/monitor.c
index 578a318..2a55d56 100644
--- a/monitor.c
+++ b/monitor.c
@@ -975,7 +975,7 @@
     if (!strcmp(items, "none")) {
         mask = 0;
     } else {
-        mask = cpu_str_to_log_mask(items);
+        mask = qemu_str_to_log_mask(items);
         if (!mask) {
             help_cmd(mon, "log");
             return;