selftests/powerpc/dscr: Restore timeout to DSCR selftests

Reducing the time taken by dscr_sysfs_test.c allows restoring the
default timeout, which was removed in
commit 850507f30c38 ("selftests/powerpc: Turn off timeout setting for
benchmarks, dscr, signal, tm") because that test took too long.

Signed-off-by: Benjamin Gray <[e-mail]>
Signed-off-by: Michael Ellerman <[e-mail]>
Link: https://msgid.link/[e-mail]

tools/testing/selftests/powerpc/dscr/Makefile

···
 	      dscr_inherit_test dscr_inherit_exec_test dscr_sysfs_test	\
 	      dscr_sysfs_thread_test
 
-TEST_FILES := settings
-
 top_srcdir = ../../../../..
 include ../../lib.mk
 

tools/testing/selftests/powerpc/dscr/settings

···
-timeout=0