Grant elbrus age-days hint

To enable elbrus to restore the correct age of some packages with "too
trivial" autopkgtests.

Signed-off-by: Niels Thykier <niels@thykier.net>

britney.conf

@@ -68,7 +68,7 @@ HINTS_KIBI        = STANDARD
 HINTS_JMW         = STANDARD
 HINTS_IVODD       = STANDARD force force-hint
 HINTS_POCHU       = STANDARD force force-hint
-HINTS_ELBRUS      = force-skiptest force-badtest
+HINTS_ELBRUS      = force-skiptest force-badtest age-days
 HINTS_FREEZE      = block block-all block-udeb
 HINTS_FREEZE-EXCEPTION = unblock unblock-udeb
 HINTS_SATBRITNEY  = easy

britney_nobreakall.conf

@@ -66,7 +66,7 @@ HINTS_KIBI        = STANDARD
 HINTS_JMW         = STANDARD
 HINTS_IVODD       = STANDARD
 HINTS_POCHU       = STANDARD force
-HINTS_ELBRUS      = force-skiptest force-badtest
+HINTS_ELBRUS      = force-skiptest force-badtest age-days
 HINTS_FREEZE      = block block-all block-udeb
 HINTS_FREEZE-EXCEPTION = unblock unblock-udeb
 HINTS_SATBRITNEY  = easy