[libc] Add more headers to the linux x86_64 and aarch64 configs.

GitOrigin-RevId: 84517b6fb112321153494f2940daf72077f98405
diff --git a/config/linux/aarch64/headers.txt b/config/linux/aarch64/headers.txt
index 1cf5be2..2f9f41f 100644
--- a/config/linux/aarch64/headers.txt
+++ b/config/linux/aarch64/headers.txt
@@ -1,9 +1,18 @@
 set(TARGET_PUBLIC_HEADERS
+    libc.include.assert_h
     libc.include.ctype
     libc.include.errno
     libc.include.fenv
     libc.include.inttypes
     libc.include.math
+    libc.include.pthread
+    libc.include.signal
+    libc.include.stdio
     libc.include.stdlib
     libc.include.string
+    libc.include.sys_mman
+    libc.include.sys_syscall
+    libc.include.threads
+    libc.include.time
+    libc.include.unistd
 )
diff --git a/config/linux/x86_64/headers.txt b/config/linux/x86_64/headers.txt
index 55504c1..2f9f41f 100644
--- a/config/linux/x86_64/headers.txt
+++ b/config/linux/x86_64/headers.txt
@@ -5,6 +5,7 @@
     libc.include.fenv
     libc.include.inttypes
     libc.include.math
+    libc.include.pthread
     libc.include.signal
     libc.include.stdio
     libc.include.stdlib