add additional lz4 magic number

Bug: 150391496
Change-Id: Ifddbd3897be7af6b1c6cedf3e3d34047f8dea75d
diff --git a/scripts/extract-vmlinux b/scripts/extract-vmlinux
index 2226fb4..1f90139 100755
--- a/scripts/extract-vmlinux
+++ b/scripts/extract-vmlinux
@@ -58,6 +58,7 @@
 try_decompress 'BZh'          xy    bunzip2
 try_decompress '\135\0\0\0'   xxx   unlzma
 try_decompress '\211\114\132' xy    'lzop -d'
+try_decompress '\004\"M\030'  xxx   'lz4 -d'
 try_decompress '\002!L\030'   xxx   'lz4 -d'
 try_decompress '(\265/\375'   xxx   unzstd