risu_ppc64le: stop loading data to register 1 and 13
risu_ppc64le: stop loading data to register 1 and 13

Register R1 is defined as the stack frame pointer and R13 is the thread
local storage by ABI. So, in order to let the program flows, they are
better to keep unchanged.

Signed-off-by: Jose Ricardo Ziviani <6ed08b1995219eda311e5bbd44478fcd359285ac@linux.vnet.ibm.com>
Message-id: 1486174642-14883-6-git-send-email-6ed08b1995219eda311e5bbd44478fcd359285ac@linux.vnet.ibm.com
Signed-off-by: Peter Maydell <313afa09ce093b19ae1dd74f57c1ebd94508584c@linaro.org>

stsquad/risu,stsquad/risu,stsquad/risu