sysdeps/managarm: Stub setsockopt with SOL_SOCKET and SO_PRIORITY #985

Job	Run time
Compile sysdeps (dripos)	1m 51s
Compile sysdeps (lemon)	1m 50s
Build mlibc (x86_64, mlibc, gcc)	1m 25s
Compile sysdeps (aero)	1m 52s
Build mlibc (x86_64, mlibc-static, gcc)	1m 7s
Build mlibc (x86_64, mlibc-shared, gcc)	1m 12s
Build mlibc (x86_64, mlibc-ansi-only, gcc)	1m 14s
Compile sysdeps (ironclad)	1m 47s
Build mlibc (x86_64, mlibc-headers-only, gcc)	1m 13s
Compile sysdeps (lyre)	1m 8s
Build mlibc (riscv64, mlibc, gcc)	1m 51s
Compile sysdeps (keyronex)	1m 55s
Compile sysdeps (managarm)	1m 42s
Compile sysdeps (vinix)	1m 9s
Build mlibc (riscv64, mlibc-static, gcc)	1m 42s
Build mlibc (riscv64, mlibc-shared, gcc)	1m 45s
Build mlibc (riscv64, mlibc-ansi-only, gcc)	1m 50s
Build mlibc (riscv64, mlibc-headers-only, gcc)	1m 45s
Build mlibc (aarch64, mlibc, gcc)	2m 0s
Build mlibc (aarch64, mlibc-static, gcc)	1m 58s
Build mlibc (aarch64, mlibc-shared, gcc)	1m 58s
Build mlibc (aarch64, mlibc-ansi-only, gcc)	2m 1s
Build mlibc (aarch64, mlibc-headers-only, gcc)	1m 51s
Build mlibc (x86, mlibc, gcc)	15s
Build mlibc (x86, mlibc-static, gcc)	1m 2s
Build mlibc (x86, mlibc-shared, gcc)	1m 4s
Build mlibc (x86, mlibc-ansi-only, gcc)	1m 5s
Build mlibc (x86, mlibc-headers-only, gcc)	1m 7s
Build mlibc (x86_64, mlibc, clang)	1m 42s
	44m 21s

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