[SYCL][Doc] Add HIP backend to the filter selector (#5176)

HIP backed support has been added with #5171.

Author: bader

sycl/doc/extensions/FilterSelector/FilterSelector.adoc

@@ -30,8 +30,9 @@ Every element of the triple is optional, but a filter must contain at least one
 
 |`cuda`
 |`host`
-| `opencl`
+|`opencl`
 |`level_zero`
+|`hip`
 |====
 
 .Supported Device Types
@@ -82,4 +83,4 @@ filter_selector("cuda:gpu,opencl:cpu")
 
 // Return either the second level_zero gpu or the host device
 filter_selector("level_zero:gpu:1,host")
-----
+----