qmi_rmnet: Remove WQ_MEM_RECLAIM from rmnet_ps_wq

Previously wq was designated as WQ_MEM_RECLAIM.
Remove this as it is unnessesary and will result in all notifier
queueing of work and to also be on wqs designated as WQ_MEM_RECLAIM.

Change-Id: I3248e3aef1594b93c16a1ab8c7c6740d53f68886
Acked-by: Raul Martinez <mraul@qti.qualcomm.com>
Signed-off-by: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>