Tweak linux_glibc properties for musl builds in external/virglrenderer am: cf1de0f462 am: f6c12bd7e3 am: 1763bf7fde

Original change: https://android-review.googlesource.com/c/platform/external/virglrenderer/+/2019635

Change-Id: I45b3c3b5a26cf46fadc94a17ec64c524ec6e9780