ARI fix: Replace long long with LONGEST.

        * aarch64-linux-nat.c (dr_changed_t): ARI fix: Replace long long
        with LONGEST.
ARI fix: Replace %llx with %s and phex().

2013-02-13  Marcus Shawcroft  <marcus.shawcroft@arm.com>

        * aarch64-linux-nat.c (debug_reg_change_callback)
        (aarch64_linux_get_debug_reg_capacity): ARI fix: Replace %llx with
        %s and phex().