configs/apf9328: bump to a modern kernel

Since the apf9238 support is in the mainline kernel, we can bump to
kernel 3.17.2.

The patches can be removed because:

 - linux-3.1.1-0001-fixes_arm_mach-types_for_apf9328.patch is no
   longer needed, since the machine number for apf9328 is now
   upstream.

 - linux-3.1.1-0002-add_missing_config_option_for_apf9328.patch is no
   longer needed, because the MTD_CFI_INTELEXT option is selected by
   the imx_v4_v5_defconfig.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>