udev: Don't fail if the linker emits any warnings

udev: Don't fail if the linker emits any warnings

This only appears on aarch64.

[436/452] Linking target src/udev/v4l_id
FAILED: src/udev/v4l_id
cc  -o src/udev/v4l_id src/udev/v4l_id.p/v4l_id_v4l_id.c.o -Wl,--as-needed -Wl,--no-undefined -Wl,-O1 -fstack-protector -O2 -g0 -pipe -Wall -fexceptions -fPIC -Wp,-U_FORTIFY_SOURCE -Wp,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -fstack-protector-strong -fstack-clash-protection -mbranch-protection=standard -Wl,--start-group src/shared/libsystemd-shared-254.a src/libsystemd/libsystemd_static.a src/basic/libbasic.a src/basic/libbasic-compress.a -Wl,--fatal-warnings -Wl,-z,now -Wl,-z,relro -Wl,--warn-common -Wl,--gc-sections -pthread /usr/lib/libacl.so /usr/lib/libblkid.so /usr/lib/libcap.so /usr/lib/libcrypt.so -ldl /lib/libip4tc.so /lib/libip6tc.so /usr/lib/libkmod.so /usr/lib/libmount.so /usr/lib/libssl.so /usr/lib/libcrypto.so /usr/lib/libpam.so -lrt /usr/lib/liblzma.so /usr/lib/libzstd.so -Wl,--fatal-warnings -Wl,-z,now -Wl,-z,relro -Wl,--warn-common -Wl,--gc-sections -Wl,--fatal-warnings -Wl,-z,now -Wl,-z,relro -Wl,--warn-common -Wl,--gc-sections -lm -Wl,--end-group -Wl,--fatal-warnings -Wl,-z,now -Wl,-z,relro -Wl,--warn-common -Wl,--gc-sections -Wl,--fatal-warnings -Wl,-z,now -Wl,-z,relro -Wl,--warn-common -Wl,--gc-sections
/usr/lib/libcrypto.so: warning: GCS is required by -z gcs, but this shared library lacks the necessary property note. The dynamic loader might not enable GCS or refuse to load the program unless all the shared library dependencies have the GCS marking.
/usr/lib/libzstd.so: warning: GCS is required by -z gcs, but this shared library lacks the necessary property note. The dynamic loader might not enable GCS or refuse to load the program unless all the shared library dependencies have the GCS marking.
collect2: error: ld returned 1 exit status
ninja: build stopped: subcommand failed.

Reported-by: Adolf Belka <adolf.belka@ipfire.org>
Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>