MAINTAINERS: Add bug tracking system location entries for cpuidle

The kernel Bugzilla is used for tracking bugs in the cpuidle core and
intel_idle, so document that.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Len Brown <len.brown@intel.com>

MAINTAINERS

@@ -3367,6 +3367,7 @@ M:	Daniel Lezcano <daniel.lezcano@linaro.org>
 L:	linux-pm@vger.kernel.org
 S:	Maintained
 T:	git git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git
+B:	https://bugzilla.kernel.org
 F:	drivers/cpuidle/*
 F:	include/linux/cpuidle.h
 
@@ -6271,6 +6272,7 @@ INTEL IDLE DRIVER
 M:	Len Brown <lenb@kernel.org>
 L:	linux-pm@vger.kernel.org
 T:	git git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux.git
+B:	https://bugzilla.kernel.org
 S:	Supported
 F:	drivers/idle/intel_idle.c