KVM: arm64: Remove all traces of HCR_EL2.MIOCNCE

MIOCNCE had the potential to eat your data, and also was never
implemented by anyone. It's been retrospectively removed from
the architecture, and we're happy to follow that lead.

Reviewed-by: Fuad Tabba <tabba@google.com>
Tested-by: Fuad Tabba <tabba@google.com>
Link: https://patch.msgid.link/20260202184329.2724080-19-maz@kernel.org
Signed-off-by: Marc Zyngier <maz@kernel.org>

Author: Marc Zyngier

arch/arm64/kvm/config.c

@@ -938,7 +938,6 @@ static const struct reg_bits_to_feat_map hcr_feat_map[] = {
 		   HCR_EL2_FMO		|
 		   HCR_EL2_ID		|
 		   HCR_EL2_IMO		|
-		   HCR_EL2_MIOCNCE	|
 		   HCR_EL2_PTW		|
 		   HCR_EL2_SWIO		|
 		   HCR_EL2_TACR		|

arch/arm64/tools/sysreg

@@ -3834,8 +3834,7 @@ Field	43	NV1
 Field	42	NV
 Field	41	API
 Field	40	APK
-Res0	39
-Field	38	MIOCNCE
+Res0	39:38
 Field	37	TEA
 Field	36	TERR
 Field	35	TLOR