cargo: workaround for successful compilation...

for aarch64 musl target.

Signed-off-by: Diana Popa <[email protected]>

Author: dianpopa

.cargo/config

@@ -1,2 +1,6 @@
 [build]
 target = "x86_64-unknown-linux-musl"
+
+[target.aarch64-unknown-linux-musl]
+linker = "aarch64-linux-gnu-gcc"
+rustflags = [ "-C", "target-feature=+crt-static", "-C", "link-arg=-lgcc" ]