Add ftrace events at interesting points in the dcvs and mpdecision code. Signed-off-by: Abhijeet Dharmapurikar <adharmap@codeaurora.org> (cherry picked from commit f17f2d347acf17097ab5c6907bdc5a4c9e631a6d) Signed-off-by: Ram Kumar Chakravarthy Chebathini <rcheba@codeaurora.org> (cherry picked from commit 950f6a4af8454ffff69b84bd3830c7091bc53c0c) Change-Id: Ic5cc00539b837090010627f364428c157137f052 Signed-off-by: Sudhir Sharma <sudsha@codeaurora.org>