Patch merged into coreboot/master: soc/imgtec/pistachio: add implementation for system reset

the following patch was just integrated into master:
commit 2e8d4ed794f7fe58a11bd84ea7da04840b5f7a00
Author: Ionela Voinescu 
Date:   Thu Dec 17 13:11:50 2015 +0000

soc/imgtec/pistachio: add implementation for system reset

Implement system reset by calling the watchdog soft reset.
    Following the soft reset, the SoC will reset to the same logic
    state and therefore have the same effect as a hard (power-on)
    reset except for:
     - watchdog scratch registers will be unaffected (hard reset
       will clear them)
     - the real time clock will be unaffected

BUG=none
    TEST=tested on Pistachio bring up board

Change-Id: I1332c2249c756f6d8574fc5c407de52f88e60f08
    Signed-off-by: Ionela Voinescu 
    Reviewed-on: https://review.coreboot.org/12755
    Tested-by: build bot (Jenkins)
    Reviewed-by: Vadim Bendebury

See https://review.coreboot.org/12755 for details.

-gerrit