target-i386: rename helper flags

Rename helper flags to the new ones. This is purely a mechanical change,
it's possible to use better flags by looking at the helpers.
Reviewed-by: NRichard Henderson <rth@twiddle.net>
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>

target-i386/helper.h

 #include "def-helper.h"
 
-DEF_HELPER_FLAGS_2(cc_compute_all, TCG_CALL_PURE, i32, env, int)
-DEF_HELPER_FLAGS_2(cc_compute_c, TCG_CALL_PURE, i32, env, int)
+DEF_HELPER_FLAGS_2(cc_compute_all, TCG_CALL_NO_SE, i32, env, int)
+DEF_HELPER_FLAGS_2(cc_compute_c, TCG_CALL_NO_SE, i32, env, int)
 
 DEF_HELPER_0(lock, void)
 DEF_HELPER_0(unlock, void)