Remove tag values from enum/union/struct declarations

The tag values largely were not used and were causing doxygen
generation issues.
In the few cases where the tags were being referenced, clean up
those compile issues.

Signed-off-by: Jason Albert <jason.albert@amd.com>
Change-Id: I7b32eac742fb5af560400c13dda2721705d882bc
Signed-off-by: Dalibor Stanisavljevic <Dalibor.Stanisavljevic@amd.com>

example/amd_smi_nodrm_example.cc

@@ -286,7 +286,7 @@ int main() {
             };
 
             // Get device name
-            amdsmi_board_info board_info = {};
+            amdsmi_board_info_t board_info = {};
             ret = amdsmi_get_board_info(device_handles[j], &board_info);
             CHK_AMDSMI_RET(ret)
             printf("    Output of amdsmi_get_board_info:\n");
@@ -331,7 +331,7 @@ int main() {
                       << "\t\tMM IP Count: " << int(caps_info.mm.mm_ip_count)
                       << "\n\n";
 
-            amdsmi_power_cap_info cap_info = {};
+            amdsmi_power_cap_info_t cap_info = {};
             ret = amdsmi_get_power_cap_info(device_handles[j], 0, &cap_info);
             CHK_AMDSMI_RET(ret)
             printf("    Output of amdsmi_get_power_cap_info:\n");