defconfig: remove CONFIG_DEVPTS_MULTIPLE_INSTANCES
fixes:
WARNING: linux-yocto-4.18.20+gitAUTOINC+fb277887dc_4e51fc97f1-r0
do_kernel_configcheck: [kernel config]: This BSP sets config
options that are not offered anywhere within this kernel:
CONFIG_DEVPTS_MULTIPLE_INSTANCES
CONFIG_DEVPTS_MULTIPLE_INSTANCES removed since kernel v4.7 via mainline
commit
eedf265aa003b4781de24cfed40a655a664457e6
Signed-off-by: Wenlin Kang <wenlin.kang@windriver.com>
Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
