Name function arguments in libc headers for Studio.

First batch of headers...

Bug: http://b/64613623
Test: builds
Change-Id: I6bc3ad79daa635456b61d03b1f43f06c433ec596
diff --git a/libc/include/netinet/in.h b/libc/include/netinet/in.h
index 10fbafa..0ca8c82 100644
--- a/libc/include/netinet/in.h
+++ b/libc/include/netinet/in.h
@@ -45,7 +45,7 @@
 typedef uint16_t in_port_t;
 typedef uint32_t in_addr_t;
 
-int bindresvport(int, struct sockaddr_in*);
+int bindresvport(int __fd, struct sockaddr_in* __sin);
 
 #if __ANDROID_API__ >= __ANDROID_API_N__
 extern const struct in6_addr in6addr_any __INTRODUCED_IN(24);