KVM: arm: Use true and false for boolean values

Return statements in functions returning bool should use true or false
instead of an integer value.

This code was detected with the help of Coccinelle.
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>

arch/arm/include/asm/kvm_emulate.h

@@ -119,7 +119,7 @@ static inline void vcpu_set_wfe_traps(struct kvm_vcpu *vcpu)
 
 static inline bool vcpu_mode_is_32bit(const struct kvm_vcpu *vcpu)
 {
-	return 1;
+	return true;
 }
 
 static inline unsigned long *vcpu_pc(struct kvm_vcpu *vcpu)