arm64: sysreg: Add layout for VNCR_EL2

Now that we're about to emulate VNCR_EL2, we need its full layout.
Add it to the sysreg file.

Reviewed-by: Oliver Upton <oliver.upton@linux.dev>
Link: https://lore.kernel.org/r/20250514103501.2225951-2-maz@kernel.org
Signed-off-by: Marc Zyngier <maz@kernel.org>

Author: Marc Zyngier

arch/arm64/include/asm/sysreg.h

@@ -521,7 +521,6 @@
 #define SYS_VTTBR_EL2			sys_reg(3, 4, 2, 1, 0)
 #define SYS_VTCR_EL2			sys_reg(3, 4, 2, 1, 2)
 
-#define SYS_VNCR_EL2			sys_reg(3, 4, 2, 2, 0)
 #define SYS_HAFGRTR_EL2			sys_reg(3, 4, 3, 1, 6)
 #define SYS_SPSR_EL2			sys_reg(3, 4, 4, 0, 0)
 #define SYS_ELR_EL2			sys_reg(3, 4, 4, 0, 1)

arch/arm64/tools/sysreg

@@ -2971,6 +2971,12 @@ Sysreg	SMCR_EL2	3	4	1	2	6
 Fields	SMCR_ELx
 EndSysreg
 
+Sysreg	VNCR_EL2	3	4	2	2	0
+Field	63:57	RESS
+Field	56:12	BADDR
+Res0	11:0
+EndSysreg
+
 Sysreg	GCSCR_EL2	3	4	2	5	0
 Fields	GCSCR_ELx
 EndSysreg