Set the dynamic field in the link map for the linker itself.

Otherwise gdb will print a spurious warning each time gdb is used:

warning: .dynamic section for "/system/bin/linker" is not at the expected
address (wrong library or version mismatch?)

BUG:6946614
Change-Id: Ib21b8db0615751189c1601140deb43bc089289b6
1 file changed