Break up the rest of stubs.cpp.

Bug: http://b/27999086
Change-Id: Ibcc2c5171d43ebd26b486642052738473f3b7714
diff --git a/libc/Android.bp b/libc/Android.bp
index de0ac0d..7c82695 100644
--- a/libc/Android.bp
+++ b/libc/Android.bp
@@ -1282,6 +1282,7 @@
         "bionic/getcwd.cpp",
         "bionic/getdomainname.cpp",
         "bionic/gethostname.cpp",
+        "bionic/getpagesize.cpp",
         "bionic/getpgrp.cpp",
         "bionic/getpid.cpp",
         "bionic/gettid.cpp",
@@ -1311,6 +1312,7 @@
         "bionic/mknod.cpp",
         "bionic/mntent.cpp",
         "bionic/mremap.cpp",
+        "bionic/netdb.cpp",
         "bionic/NetdClientDispatch.cpp",
         "bionic/net_if.cpp",
         "bionic/netinet_in.cpp",
@@ -1364,7 +1366,6 @@
         "bionic/strerror_r.cpp",
         "bionic/strsignal.cpp",
         "bionic/strtold.cpp",
-        "bionic/stubs.cpp",
         "bionic/symlink.cpp",
         "bionic/sysinfo.cpp",
         "bionic/syslog.cpp",