msm: vidc: Fix bug in bus scaling
msm: vidc: Fix bug in bus scaling

Fix index calculation for finding corresponding bus bandwidth.
Without this fix, higher resolutions will not be able to scale
bus accordingly resulting in poor performance/fps.

Change-Id: I0eb71336f9113c086bc51f7fd7669bb0adee2e1f
Signed-off-by: Ashray Kulkarni <f270451dcbab17e65aa34ef9555bcd382481f8b3@codeaurora.org>

TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas