msm: camera: cdm: Update hang detect logic

Currently cdm driver is updating work records
in case of all the interrupts received, but
decrementing only when it schedule workq for
inline irq interrupt. This causes the mismatch
in work records and return incorrect work record
count when cdm client check the cdm hang detect.

Updated hang detect logic in cdm driver.

CRs-Fixed: 2878695
Change-Id: I7039422bf573a7105c16ac2f752eb235c377bfee
Signed-off-by: Alok Chauhan <alokc@codeaurora.org>