Update to v4.19 kernel headers.

Test: Builds and boots.
Change-Id: I99a9ed79666e143b47f02ca4e59eed94f69b7e4a
(cherry picked from commit a981e2e52e2e95a65fa9c9b6fb16dcb4c83dd576)
diff --git a/tests/headers/posix/sys_shm_h.c b/tests/headers/posix/sys_shm_h.c
index 4ecd6d3..03d6815 100644
--- a/tests/headers/posix/sys_shm_h.c
+++ b/tests/headers/posix/sys_shm_h.c
@@ -26,6 +26,8 @@
  * SUCH DAMAGE.
  */
 
+#if defined(__BIONIC__)
+
 #include <sys/shm.h>
 
 #include "header_checks.h"
@@ -43,9 +45,16 @@
   STRUCT_MEMBER(struct shmid_ds, pid_t, shm_lpid);
   STRUCT_MEMBER(struct shmid_ds, pid_t, shm_cpid);
   STRUCT_MEMBER(struct shmid_ds, shmatt_t, shm_nattch);
+#if defined(__LP64__)
   STRUCT_MEMBER(struct shmid_ds, time_t, shm_atime);
   STRUCT_MEMBER(struct shmid_ds, time_t, shm_dtime);
   STRUCT_MEMBER(struct shmid_ds, time_t, shm_ctime);
+#else
+  // Starting at kernel v4.19, 32 bit changed these to unsigned values.
+  STRUCT_MEMBER(struct shmid_ds, unsigned long, shm_atime);
+  STRUCT_MEMBER(struct shmid_ds, unsigned long, shm_dtime);
+  STRUCT_MEMBER(struct shmid_ds, unsigned long, shm_ctime);
+#endif
 
   TYPE(pid_t);
   TYPE(size_t);
@@ -56,3 +65,4 @@
   FUNCTION(shmdt, int (*f)(const void*));
   FUNCTION(shmget, int (*f)(key_t, size_t, int));
 }
+#endif