updated descriptions based on feedback

Author: Sandido

src/Compute/Compute/help/New-AzVM.md

@@ -396,10 +396,12 @@ Accept wildcard characters: False
 
 ### -LicenseType
 Specifies a license type, which indicates that the image or disk for the virtual machine was licensed on-premises.
-This value is used only for images that contain the Windows Server operating system.
-The acceptable values for this parameter are:
+Possible values for Windows Server are:
 - Windows_Client
 - Windows_Server
+Possible values for Linux Server operating system are: 
+- RHEL_BYOS (for RHEL) 
+- SLES_BYOS (for SUSE) 
 
 ```yaml
 Type: System.String

src/Compute/Compute/help/New-AzVMConfig.md

@@ -167,10 +167,12 @@ Accept wildcard characters: False
 
 ### -LicenseType
 Specifies a license type, which indicates that the image or disk for the virtual machine was licensed on-premises.
-This value is used only for images that contain the Windows Server operating system.
-The acceptable values for this parameter are:
+Possible values for Windows Server are:
 - Windows_Client
 - Windows_Server
+Possible values for Linux Server operating system are: 
+- RHEL_BYOS (for RHEL) 
+- SLES_BYOS (for SUSE) 
 
 ```yaml
 Type: System.String