arm64: defconfig: Insert Adreno default governor in gki defconfig

CONFIG_QCOM_ADRENO_DEFAULT_GOVERNOR is getting inserted into qgki
defconfig by default on doing a make menuconfig. Clean it by
inserting into gki defconfig.

Change-Id: Ie479abfaad1352c3026a7fc027cfb9b59501f65d
Signed-off-by: Chandra Sai Chidipudi <cchidipu@codeaurora.org>