Merged PR 18784: Add two missing files from stubs to SSPI API

Add two missing files from stubs to SSPI API.

One of the vendors submitted a PR to remove links pointing to these missing files from the win32-pr repo (PR [1357](MicrosoftDocs/win32-pr#1357)).

SSPI has a bunch of other missing files that have stubs too. I'm going to talk to John about these before creating another PR to add them.

Author: alvinashcraft

sdk-api-src/content/sspi/ns-sspi-_secpkgcontext_credentialnamea.md

@@ -0,0 +1,63 @@
+---
+UID: NS:sspi._SecPkgContext_CredentialNameA
+tech.root: security
+title: SecPkgContext_CredentialNameA
+ms.date: 06/20/2022
+targetos: Windows
+description: Contains the credential name and type.
+prerelease: false
+req.construct-type: structure
+req.ddi-compliance: 
+req.dll: 
+req.header: sspi.h
+req.include-header: 
+req.kmdf-ver: 
+req.lib: 
+req.max-support: 
+req.redist: 
+req.target-min-winverclnt: 
+req.target-min-winversvr: 
+req.target-type: 
+req.typenames: SecPkgContext_CredentialNameA, *PSecPkgContext_CredentialNameA
+req.umdf-ver: 
+req.unicode-ansi: 
+topic_type:
+ - apiref
+api_type:
+ - HeaderDef
+api_location:
+ - sspi.h
+api_name:
+ - _SecPkgContext_CredentialNameA
+ - PSecPkgContext_CredentialNameA
+ - SecPkgContext_CredentialNameA
+f1_keywords:
+ - _SecPkgContext_CredentialNameA
+ - sspi/_SecPkgContext_CredentialNameA
+ - PSecPkgContext_CredentialNameA
+ - sspi/PSecPkgContext_CredentialNameA
+ - SecPkgContext_CredentialNameA
+ - sspi/SecPkgContext_CredentialNameA
+dev_langs:
+ - c++
+helpviewer_keywords:
+ - _SecPkgContext_CredentialNameA
+---
+
+## -description
+
+Contains the credential name and type.
+
+## -struct-fields
+
+### -field CredentialType
+
+Indicates the type of credential name.
+
+### -field sCredentialName
+
+Contains the credential name.
+
+## -remarks
+
+## -see-also

sdk-api-src/content/sspi/ns-sspi-_secpkgcontext_nativenamesa.md

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+---
+UID: NS:sspi._SecPkgContext_NativeNamesA
+tech.root: security
+title: SecPkgContext_NativeNamesA
+ms.date: 06/20/2022
+targetos: Windows
+description: Contains the client and server principal names.
+prerelease: false
+req.construct-type: structure
+req.ddi-compliance: 
+req.dll: 
+req.header: sspi.h
+req.include-header: 
+req.kmdf-ver: 
+req.lib: 
+req.max-support: 
+req.redist: 
+req.target-min-winverclnt: 
+req.target-min-winversvr: 
+req.target-type: 
+req.typenames: SecPkgContext_NativeNamesA, *PSecPkgContext_NativeNamesA
+req.umdf-ver: 
+req.unicode-ansi: 
+topic_type:
+ - apiref
+api_type:
+ - HeaderDef
+api_location:
+ - sspi.h
+api_name:
+ - _SecPkgContext_NativeNamesA
+ - PSecPkgContext_NativeNamesA
+ - SecPkgContext_NativeNamesA
+f1_keywords:
+ - _SecPkgContext_NativeNamesA
+ - sspi/_SecPkgContext_NativeNamesA
+ - PSecPkgContext_NativeNamesA
+ - sspi/PSecPkgContext_NativeNamesA
+ - SecPkgContext_NativeNamesA
+ - sspi/SecPkgContext_NativeNamesA
+dev_langs:
+ - c++
+helpviewer_keywords:
+ - _SecPkgContext_NativeNamesA
+---
+
+## -description
+
+Contains the client and server principal names.
+
+## -struct-fields
+
+### -field sClientName
+
+The client principal name (CNAME).
+
+### -field sServerName
+
+The server principal name (CNAME).
+
+## -remarks
+
+## -see-also