musl: Delete GLIBC_LDSO before creating symlink with lnr
Fixes rebuild failures after say do_compile fails
| ./tools/install.sh -D -r /mnt/a/yoe/build/tmp/work/riscv64-yoe-linux-musl/musl/1.1.23+gitAUTOINC+
d0b547dfb5-r0/image/usr/lib/libc.so /mnt/a/yoe/build/tmp/work/riscv64-yoe-linux-musl/musl/1.1.23+gitAUTOINC+
d0b547dfb5-r0/image/lib/ld-musl-riscv64.so.1 || true
| Traceback (most recent call last):
| File "/mnt/a/yoe/sources/openembedded-core/scripts/lnr", line 24, in <module>
| os.symlink(target, linkname)
| FileExistsError: [Errno 17] File exists: 'image/usr/lib/libc.so' -> '/mnt/a/yoe/build/tmp/work/riscv64-yoe-linux-musl/musl/1.1.23+gitAUTOINC+
d0b547dfb5-r0/imageNone'
Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
