perf: Ignore perf.data.old
perf: Ignore perf.data.old

Tell git to ignore this file.

Signed-off-by: WANG Cong <b08afa93ec8eabe95bc97d12956ca699fa65834c@redhat.com>
LKML-Reference: <0ed2818769cba9dfe1749572d76c9ed0fa8de365@localhost.localdomain>
Signed-off-by: Ingo Molnar <9dbbbf0688fedc85ad4da37637f1a64b8c718ee2@elte.hu>

TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs