msm: camera: ife: Do not reset epd value during csid reset

EPD value is retrieved from init packet and set. It is
uninitialized during CSID global reset as part of CSID init.
uninitialization of EPD variable is removed to fix the issue.

CRs-Fixed: 2690666
Change-Id: I3454007d3130e4cb8397ab0b09416da7f000bab2
Signed-off-by: Ravikishore Pampana <rpampana@codeaurora.org>