MdeModulePkg/XhciSched: Fix missing DEBUG arguments

MdeModulePkg/XhciSched: Fix missing DEBUG arguments

REF:https://bugzilla.tianocore.org/show_bug.cgi?id=3662

Two DEBUG macros in XhciDxe/XhciSched.c are missing the argument
that should be passed for the print specifier.

In addition, this change updates the print level to "DEBUG_ERROR"
and prints the status as well.

Cc: Jian J Wang <jian.j.wang@intel.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Cc: Hao A Wu <hao.a.wu@intel.com>
Cc: Ray Ni <ray.ni@intel.com>
Signed-off-by: Michael Kubacki <michael.kubacki@microsoft.com>
Reviewed-by: Hao A Wu <hao.a.wu@intel.com>
Reviewed-by: Liming Gao <gaoliming@byosoft.com.cn>