Use a constant-time MAX function

Bug: 146520538
Test: atest HadamardTest
Change-Id: Ife1012c14d697141e6ee0c583dc32eaacdb72b73
Merged-In: Ife1012c14d697141e6ee0c583dc32eaacdb72b73
(cherry picked from commit b0d2062abebee358ac9d4fa66b8124ec37a916c8)
1 file changed