MAINTAINERS: Add a git for the DT IDLE PM DOMAIN

Let' make it clear that we have git to manage the corresponding patches for
for the DT IDLE PM DOMAIN.

Cc: Rafael J. Wysocki <[email protected]>
Signed-off-by: Ulf Hansson <[email protected]>
Link: https://lore.kernel.org/r/[email protected]

Author: storulf

MAINTAINERS

@@ -5586,6 +5586,7 @@ CPUIDLE DRIVER - DT IDLE PM DOMAIN
 M:	Ulf Hansson <[email protected]>
 L:	[email protected]
 S:	Supported
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/linux-pm.git
 F:	drivers/cpuidle/dt_idle_genpd.c
 F:	drivers/cpuidle/dt_idle_genpd.h