diag: Set socket CDSP enum value same as CDSP diag macro

CDSP peripheral macro value and CDSP socket enum value are not
same causing invalid cleanup of diag control channel status during
peripheral SSR. Set CDSP socket enum value same as peripheral
CDSP macro.

Change-Id: I2c82fc4a7d1bd7491560942d525ed579f39d1e60
Signed-off-by: Manoj Prabhu B <bmanoj@codeaurora.org>