powerpc: avoid -mno-sched-epilog on GCC 4.9 and newer

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Nicholas Piggin 2018-09-14 15:08:54 +10:00 • committed by Michael Ellerman
commit 6977f95e63