Which intel wifi adapter to be used for apalis imx6 evaluation board with mini pcie communication?

Since intel wireless wifi 4965agn has been discontinued by intel in 2013. which is the better intel adapter
in these two.
Intel - Dual Band wireless AC 3160
Intel - Dual Band wireless AC 7260
In the above two which module driver is supported in the “make menuconfig” configuration

Both will be supported, however since kernel backports were introduced in 2.7b4 wifi drivers we recommend using are outside of kernel. So when building custom images you should use oe build system to build kernel and backports modules, or build kernel and then backports manually.
Appropriate drivers should already be included in our latest BSP images, however we did not test wlan cards you’ve mentioned. If you test it, please let us know what’s the result.