libmediadrm logging: avoid unaligned memory

Bug: 199123673
Test: MediaDrmClearkeyTest
Change-Id: I02936ab6fc21da21f260ff4d5d15bf4bba37d3e4
Merged-In: I02936ab6fc21da21f260ff4d5d15bf4bba37d3e4
(cherry picked from commit 322187cfe91a2695c746b2e8c8424ade5b47ccf0)
1 file changed