Correct comment in boot image header

Test: make
Bug: 80207223
Change-Id: I88cf7683e036ff43bbe3ff5418519c7e35e08b79
Merged-In: I88cf7683e036ff43bbe3ff5418519c7e35e08b79
(cherry picked from commit d0ab4e3701dcec866cb05f4d2a122fbbcabf61cc)
1 file changed