KVM: emulate: rework seg_override

x86_decode_insn already sets a default for seg_override,
so remove it from the zeroed area. Also replace set/get functions
with direct access to the field.

Signed-off-by: Bandan Das <bsd@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
diff --git a/arch/x86/include/asm/kvm_emulate.h b/arch/x86/include/asm/kvm_emulate.h
index d40a10a..6c80840 100644
--- a/arch/x86/include/asm/kvm_emulate.h
+++ b/arch/x86/include/asm/kvm_emulate.h
@@ -295,12 +295,10 @@
 	struct operand dst;
 	int (*execute)(struct x86_emulate_ctxt *ctxt);
 	int (*check_perm)(struct x86_emulate_ctxt *ctxt);
-	bool has_seg_override;
 	bool rip_relative;
 	u8 rex_prefix;
 	u8 lock_prefix;
 	u8 rep_prefix;
-	u8 seg_override;
 	/* bitmaps of registers in _regs[] that can be read */
 	u32 regs_valid;
 	/* bitmaps of registers in _regs[] that have been written */
@@ -311,6 +309,7 @@
 	u8 modrm_reg;
 	u8 modrm_rm;
 	u8 modrm_seg;
+	u8 seg_override;
 	u64 d;
 	unsigned long _eip;
 	struct operand memop;