Add VNDK version suffix in ld.config.txt on build time.

As we use different ld.config.txt per version, we don't need to
substitute the VNDK_VER on run time.
Remove all ${VNDK_VER} from the linker namespace configuration files.

Bug: 70603313
Test: build and boot GSI for walleye and sailfish
Change-Id: Ief8aee5c3308b2462cafaffc2423deda4e51a7bb