Fix undefined reference to `epoll_pwait2' for LA64 ABI 1.0 (#2422) #5509

Job	Run time
build (X64, Release, ubuntu-latest)	2m 15s
build (X64, Trace, ubuntu-latest)	2m 28s
build (X64, Box32, ubuntu-latest)	3m 5s
build (RISCV, Release, ubuntu-latest)	8m 39s
build (RISCV, Trace, ubuntu-latest)	9m 13s
build (RISCV, StaticBuild, ubuntu-latest)	5m 46s
build (RISCV, Box32, ubuntu-latest)	10m 14s
build (RK3588, Release, ubuntu-22.04-arm)	6m 50s
build (RK3588, Trace, ubuntu-22.04-arm)	5m 42s
build (RK3588, StaticBuild, ubuntu-22.04-arm)	3m 22s
build (RK3588, Box32, ubuntu-22.04-arm)	5m 32s
build (ARM64, Release, ubuntu-22.04-arm)	6m 19s
build (ARM64, Trace, ubuntu-22.04-arm)	6m 48s
build (ARM64, StaticBuild, ubuntu-22.04-arm)	3m 55s
build (ARM64, Box32, ubuntu-22.04-arm)	7m 4s
build (ANDROID, Release, ubuntu-latest)	2m 28s
build (ANDROID, Trace, ubuntu-latest)	2m 46s
build (TERMUX, Release, ubuntu-latest)	2m 25s
build (TERMUX, Trace, ubuntu-latest)	2m 38s
build (LARCH64, Release, ubuntu-latest)	4m 3s
build (LARCH64, Trace, ubuntu-latest)	4m 25s
build (LARCH64, StaticBuild, ubuntu-latest)	2m 4s
build (LARCH64, Box32, ubuntu-latest)	4m 26s
build (ANDROID_GLIBC, Release, ubuntu-22.04-arm)	6m 33s
build (ANDROID_GLIBC, Trace, ubuntu-22.04-arm)	5m 50s
build (ANDROID_GLIBC, StaticBuild, ubuntu-22.04-arm)	4m 14s
build (ANDROID_GLIBC, Box32, ubuntu-22.04-arm)	7m 46s
	2h 16m 50s

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