msm: camera: cpas: Updated new api to limit gpu fmax

Existing gfx api returns failure when requested frequency
is larger than fmax supported. Updated new gfx api to limit
gpu fmax.

CRs-Fixed: 2684122
Change-Id: Idfb9232b7a2885adbed83851c41ed316a6b23590
Signed-off-by: Alok Chauhan <alokc@codeaurora.org>