arm64/sysreg: Add ICH_VCTLR_EL2

This system register is required to enable/disable V3 legacy mode when
running on a GICv5 host.

Co-authored-by: Timothy Hayes <[email protected]>
Signed-off-by: Timothy Hayes <[email protected]>
Signed-off-by: Sascha Bischoff <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Oliver Upton <[email protected]>

Author: 2 people

arch/arm64/tools/sysreg

@@ -4530,6 +4530,12 @@ Field	1	U
 Field	0	EOI
 EndSysreg
 
+Sysreg	ICH_VCTLR_EL2	3	4	12	11	4
+Res0	63:2
+Field	1	V3
+Field	0	En
+EndSysreg
+
 Sysreg	CONTEXTIDR_EL2	3	4	13	0	1
 Fields	CONTEXTIDR_ELx
 EndSysreg