kvm: mmu: fix typos in struct kvm_arch

No 'kvmp_mmu_pages', it should be 'kvm_mmu_page'. And
struct kvm_mmu_pages and struct kvm_mmu_page are different structures,
here should be kvm_mmu_page.
kvm_mmu_pages is defined in arch/x86/kvm/mmu/mmu.c.

Suggested-by: David Matlack <dmatlack@google.com>
Signed-off-by: Peng Hao <flyingpeng@tencent.com>
Reviewed-by: David Matlack <dmatlack@google.com>
Message-Id: <CAPm50aL=0smbohhjAcK=ciUwcQJ=uAQP1xNQi52YsE7U8NFpEw@mail.gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

arch/x86/include/asm/kvm_host.h

@@ -1280,8 +1280,8 @@ struct kvm_arch {
 	bool tdp_mmu_enabled;
 
 	/*
-	 * List of struct kvm_mmu_pages being used as roots.
-	 * All struct kvm_mmu_pages in the list should have
+	 * List of kvm_mmu_page structs being used as roots.
+	 * All kvm_mmu_page structs in the list should have
 	 * tdp_mmu_page set.
 	 *
 	 * For reads, this list is protected by:
@@ -1300,8 +1300,8 @@ struct kvm_arch {
 	struct list_head tdp_mmu_roots;
 
 	/*
-	 * List of struct kvmp_mmu_pages not being used as roots.
-	 * All struct kvm_mmu_pages in the list should have
+	 * List of kvm_mmu_page structs not being used as roots.
+	 * All kvm_mmu_page structs in the list should have
 	 * tdp_mmu_page set and a tdp_mmu_root_count of 0.
 	 */
 	struct list_head tdp_mmu_pages;
@@ -1311,9 +1311,9 @@ struct kvm_arch {
 	 * is held in read mode:
 	 *  - tdp_mmu_roots (above)
 	 *  - tdp_mmu_pages (above)
-	 *  - the link field of struct kvm_mmu_pages used by the TDP MMU
+	 *  - the link field of kvm_mmu_page structs used by the TDP MMU
 	 *  - lpage_disallowed_mmu_pages
-	 *  - the lpage_disallowed_link field of struct kvm_mmu_pages used
+	 *  - the lpage_disallowed_link field of kvm_mmu_page structs used
 	 *    by the TDP MMU
 	 * It is acceptable, but not necessary, to acquire this lock when
 	 * the thread holds the MMU lock in write mode.