psci_power_state_loses_context() and psci_power_state_is_valid are only
used internally now, so make them static.
Signed-off-by: NJisheng Zhang <jszhang@marvell.com>
Signed-off-by: NLorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: NArnd Bergmann <arnd@arndb.de>