Update to v5.5 kernel headers.
Kernel headers coming from:
Git: https://android.googlesource.com/kernel/common/
Branch: android-mainline
Tag: android-mainline-5.5
Test: Boots on walleye.
Test: Ran bionic-unit-tests on walleye.
Test: Boots on cuttlefish.
Test: Ran bionic-unit-tests on cuttlefish.
Change-Id: I57387d3c31e0ba5ad125ffe291cecf365c7b374e
Merged-In: I57387d3c31e0ba5ad125ffe291cecf365c7b374e
diff --git a/libc/kernel/uapi/linux/chio.h b/libc/kernel/uapi/linux/chio.h
index 51425fa..725e760 100644
--- a/libc/kernel/uapi/linux/chio.h
+++ b/libc/kernel/uapi/linux/chio.h
@@ -16,6 +16,8 @@
***
****************************************************************************
****************************************************************************/
+#ifndef _UAPI_LINUX_CHIO_H
+#define _UAPI_LINUX_CHIO_H
#define CHET_MT 0
#define CHET_ST 1
#define CHET_IE 2
@@ -116,3 +118,4 @@
#define CHIOINITELEM _IO('c', 17)
#define CHIOSVOLTAG _IOW('c', 18, struct changer_set_voltag)
#define CHIOGVPARAMS _IOR('c', 19, struct changer_vendor_params)
+#endif