arm64/sysreg: Add ICH_VMCR_EL2

Add the ICH_VMCR_EL2 register, which is required for the upcoming
GICv5 KVM support. This register has two different field encodings,
based on if it is used for GICv3 or GICv5-based VMs. The
GICv5-specific field encodings are generated with a FEAT_GCIE prefix.

This register is already described in the GICv3 KVM code
directly. This will be ported across to use the generated encodings as
part of an upcoming change.

Signed-off-by: Sascha Bischoff <sascha.bischoff@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

Author: Sticklyman1936

arch/arm64/tools/sysreg

@@ -4669,6 +4669,27 @@ Field	1	V3
 Field	0	En
 EndSysreg
 
+Sysreg	ICH_VMCR_EL2	3	4	12	11	7
+Prefix	FEAT_GCIE
+Res0	63:32
+Field	31:27	VPMR
+Res0	26:1
+Field	0	EN
+EndPrefix
+Res0	63:32
+Field	31:24	VPMR
+Field	23:21	VBPR0
+Field	20:18	VBPR1
+Res0	17:10
+Field	9	VEOIM
+Res0	8:5
+Field	4	VCBPR
+Field	3	VFIQEn
+Field	2	VAckCtl
+Field	1	VENG1
+Field	0	VENG0
+EndSysreg
+
 Sysreg	CONTEXTIDR_EL2	3	4	13	0	1
 Fields	CONTEXTIDR_ELx
 EndSysreg