Azure Stack installation checks for company admin role instead of global admin

Running "DRIVE:\AzureStack_Installer\asdk-installer.ps1" after booting into CloudBuilder.vhdx checks for company administrator role instead of global administrator in "C:\CloudDeployment\Setup\Common\AzureADConfiguration.psm1", line 339.
If the user installing ASDK has only global administrator role, installation fails with error message saying that the user does not have access to any tenants.

[Documentation states that only global administrator role is required for installation.](https://docs.microsoft.com/en-us/azure-stack/asdk/asdk-install?view=azs-2008)

[Same issue on Microsoft Q&A](https://docs.microsoft.com/en-us/answers/questions/257338/asdk-deployment-fails.html)

从 DRIVE:\AzureStack_Installer\asdk-installer.ps1 开始，检查 C:\CloudDeployment\Setup\Common\AzureADConfiguration.psm1 第 339 行的角色检查。将该检查与链接的安装文档进行比较，然后验证仅具有 global administrator role 的用户不再因 tenant-access error 而失败。

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