ARM: dts: rainier: Define name for gpio line Q2

gpio-line-names Q2 set to regulator-standby-faulted

Signed-off-by: Ben Tyner <ben.tyner@ibm.com>
Reviewed-by: Eddie James <eajames@linux.ibm.com>
Link: https://lore.kernel.org/r/20210920150549.6431-2-bentyner@linux.ibm.com


Signed-off-by: Joel Stanley <joel@jms.id.au>