mips32, in wait_for_pracc_rw() use ejtag_info->pa_ctrl

Makes code shorter
In fasdata transfer fuction declare variables locally.
Avoid cast.

Change-Id: I0367b66339560fc20521a0598488e7ff9076808e
Signed-off-by: Salvador Arroyo <sarroyofdez@yahoo.es>
Reviewed-on: http://openocd.zylin.com/4011


Tested-by: jenkins
Reviewed-by: Freddie Chopin <freddie.chopin@gmail.com>