fix: allow nintendoswitch target to compile

Signed-off-by: deadprogram <ron@hybridgroup.com>

src/syscall/proc_emulated.go

@@ -1,4 +1,4 @@
-//go:build baremetal || tinygo.wasm
+//go:build baremetal || tinygo.wasm || nintendoswitch
 
 // This file emulates some process-related functions that are only available
 // under a real operating system.

src/syscall/proc_hosted.go

@@ -1,4 +1,4 @@
-//go:build !baremetal && !tinygo.wasm
+//go:build !baremetal && !tinygo.wasm && !nintendoswitch
 
 // This file assumes there is a libc available that runs on a real operating
 // system.