configs: zynq_pluto_defconfig: Enable IPv6 support and disable GCC pl…

…ugins

* IPv6 realted to analogdevicesinc/plutosdr-fw#87
* Disable GCC plugins since we now use the Linaro toolchain
  * Note: This will break building with the Xilinx/AMD toolchain

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>

arch/arm/configs/zynq_pluto_defconfig

@@ -37,7 +37,6 @@ CONFIG_CPU_IDLE_GOV_MENU=y
 CONFIG_ARM_ZYNQ_CPUIDLE=y
 CONFIG_VFP=y
 CONFIG_NEON=y
-# CONFIG_GCC_PLUGINS is not set
 CONFIG_MODULES=y
 CONFIG_MODULE_UNLOAD=y
 CONFIG_MODULE_FORCE_UNLOAD=y