defconfig: 8974: disable RTB logging in perf defconfig
defconfig: 8974: disable RTB logging in perf defconfig

RTB logging adds latency for the register access. This is causing
hindrance to the performance measurement. Hence disable RTB logging
in perf defconfig.

Change-Id: I8e3eb552a667e7958621c91b6b779b9fce24b350
Signed-off-by: Ping Li <915655ad01061a8ee4f5aedf64e4a81e454408f3@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