staging: ashmem: Add missing include

BugLink: https://bugs.launchpad.net/bugs/1826212

[ Upstream commit 90a2f171 ]

Include <linux/types.h> into ashmem.h to ensure referenced types
are defined

Cc: Android Kernel Team <kernel-team@android.com>
Cc: Greg KH <gregkh@linuxfoundation.org>
Signed-off-by: Rom Lemarchand <romlem@android.com>
[jstultz: Minor commit message tweaks]
Signed-off-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
Signed-off-by: Kleber Sacilotto de Souza <kleber.souza@canonical.com>

drivers/staging/android/uapi/ashmem.h

@@ -13,6 +13,7 @@
 #define _UAPI_LINUX_ASHMEM_H
 
 #include <linux/ioctl.h>
+#include <linux/types.h>
 
 #define ASHMEM_NAME_LEN		256