Revert "msm_serial_hs: Fix UART Rx dmov command stall issues"
This reverts commit 36faa4e79a3cb1bd657ecceacfe68671d1a48c53.

Conflicts:
	drivers/tty/serial/msm_serial_hs.c

Change-Id: If0451c2032f0f980dc1e3bbf76cd895b87f79453