CRM-12233 Add upgrade statement to fix Membership field label for quick config

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* CRM-12233: Online membership signup - contribution amounts field should not be required + various notices
  http://issues.civicrm.org/jira/browse/CRM-12233

CRM/Upgrade/Incremental/sql/4.3.beta5.mysql.tpl

 -- CRM-12142
 -- Populate default text for premiums_nothankyou_label
-UPDATE `civicrm_premiums` SET {localize field="premiums_nothankyou_label"}premiums_nothankyou_label = '{ts escape="sql"}No thank-you{/ts}'{/localize};
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+UPDATE `civicrm_premiums` SET {localize field="premiums_nothankyou_label"}premiums_nothankyou_label = '{ts escape="sql"}No thank-you{/ts}'{/localize};
+
+-- CRM-12233 Fix price field label for quick config membership signup field
+UPDATE `civicrm_price_field` cpf
+LEFT JOIN `civicrm_price_set` cps ON cps.id = cpf.price_set_id
+SET {localize field="label"}cpf.label = '{ts escape="sql"}Membership{/ts}'{/localize}
+WHERE cps.is_quick_config = 1 AND cpf.name = 'membership_amount';
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