msm: cpp: Changing order of setting GDSRC register

If GDSRC is set after FW load this is causing FW timeout.
Setting this before Jump instruction to avoid timeout.

Change-Id: I8b20ae1d8ae627288f1615a6ae6480dd8105ddcb
Signed-off-by: Shilpa Mamidi <shilpam@codeaurora.org>