Add HWCAP_SSBS from Linux 4.20 to AArch64 bits/hwcap.h

[Joseph Myers]

This patch adds the HWCAP_SSBS constant from Linux 4.20 to the AArch64
bits/hwcap.h.

Tested with build-many-glibcs.py for aarch64-linux-gnu.

2018-12-31  Joseph Myers  <joseph@codesourcery.com>

	* sysdeps/unix/sysv/linux/aarch64/bits/hwcap.h (HWCAP_SSBS): New
	macro.

diff --git a/sysdeps/unix/sysv/linux/aarch64/bits/hwcap.h b/sysdeps/unix/sysv/linux/aarch64/bits/hwcap.h
index 083791349c..c3afe4082e 100644
--- a/sysdeps/unix/sysv/linux/aarch64/bits/hwcap.h
+++ b/sysdeps/unix/sysv/linux/aarch64/bits/hwcap.h
@@ -49,3 +49,4 @@
 #define HWCAP_USCAT		(1 << 25)
 #define HWCAP_ILRCPC		(1 << 26)
 #define HWCAP_FLAGM		(1 << 27)
+#define HWCAP_SSBS		(1 << 28)

-- 
Joseph S. Myers
joseph@codesourcery.com