[ARM] Add PM_LEGACY defaults

Eliminate two warnings:

kernel/power/pm.c:205: warning: 'pm_register' is deprecated (declared at kernel/power/pm.c:64)
kernel/power/pm.c:206: warning: 'pm_send_all' is deprecated (declared at kernel/power/pm.c:180)

by updating defconfig files to contain a sensible PM_LEGACY default.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/arch/arm/configs/spitz_defconfig b/arch/arm/configs/spitz_defconfig
index d1ace3a..bd03238 100644
--- a/arch/arm/configs/spitz_defconfig
+++ b/arch/arm/configs/spitz_defconfig
@@ -207,6 +207,7 @@
 # Power management options
 #
 CONFIG_PM=y
+# CONFIG_PM_LEGACY is not set
 CONFIG_APM=y
 
 #