ddns-scripts: get l3 device for bind network using curl #21571

Job	Run time
Feeds Package Test Build / Test aarch64_generic	13m 5s
Feeds Package Test Build / Test arm_cortex-a15_neon-vfpv4	12m 53s
Feeds Package Test Build / Test arm_cortex-a9_vfpv3-d16	12m 15s
Feeds Package Test Build / Test i386_pentium-mmx	13m 29s
Feeds Package Test Build / Test mips_24kc	11m 5s
Feeds Package Test Build / Test mipsel_24kc	13m 29s
Feeds Package Test Build / Test powerpc_464fp	13m 39s
Feeds Package Test Build / Test powerpc_8548	13m 32s
Feeds Package Test Build / Test riscv64_riscv64	13m 21s
Feeds Package Test Build / Test x86_64	13m 50s
	2h 10m 38s

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