exception: switch to public sdbus exception

SdBusError was intended to be a private error type inside sdbusplus.
Switch all catch locations to use the general sdbusplus::exception type.

Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
Change-Id: Idda02eeec799a0d1b8eef474988e7e4c8d4dc65f
diff --git a/epoch_base.cpp b/epoch_base.cpp
index 96552ac..8f51f41 100644
--- a/epoch_base.cpp
+++ b/epoch_base.cpp
@@ -46,7 +46,7 @@
     {
         bus.call_noreply(method);
     }
-    catch (const sdbusplus::exception::SdBusError& ex)
+    catch (const sdbusplus::exception::exception& ex)
     {
         log<level::ERR>("Error in setting system time");
         using namespace xyz::openbmc_project::Time;