host-dump: Renamed host-dump-offload-transport build option

Currently dump manager using "host-dump-offload-transport" to mention
the transport protocol name to offload host dumps but, same transport
can use to other actions i.e create and delete. So, Changing build option
name into "host-transport" to make generic.

Also, transport code sources files are organized based on "offload" name
so, changed same as "host-transport".

Signed-off-by: Ramesh Iyyar <rameshi1@in.ibm.com>
Change-Id: I9e229218ea8c606e7092daf4d24fd6d16eb425c8
diff --git a/meson_options.txt b/meson_options.txt
index 48e7038..ea73c7f 100644
--- a/meson_options.txt
+++ b/meson_options.txt
@@ -83,7 +83,7 @@
         description : 'YAML filepath containing error object paths'
       )
 
-option('host-dump-offload-transport', type : 'string',
+option('host-transport', type : 'string',
         value : 'default',
         description : 'To specify the host dump transport protocol')