package/aircrack-ng: powerpc arch requires altivec

The powerpc support in this package currently requires an arch with
altivec accelerator support. This is a bug and the the powerpc arch
should have a non-simd option like ARM/x86.

Upstream issue: aircrack-ng/aircrack-ng#1941

Fixes
http://autobuild.buildroot.net/results/87e82a5e8d0b1c1ff10ec3e59d25bcd56b329075

Signed-off-by: Matthew Weber <matthew.weber@rockwellcollins.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/aircrack-ng/Config.in

@@ -4,6 +4,9 @@ config BR2_PACKAGE_AIRCRACK_NG
 	depends on BR2_TOOLCHAIN_HAS_THREADS
 	depends on BR2_INSTALL_LIBSTDCPP
 	depends on !BR2_STATIC_LIBS # dlfcn.h
+	# https://github.com/aircrack-ng/aircrack-ng/issues/1941
+	depends on BR2_POWERPC_CPU_HAS_ALTIVEC || \
+		!(BR2_powerpc || BR2_powerpc64 || BR2_powerpc64le)
 	select BR2_PACKAGE_OPENSSL if !BR2_PACKAGE_LIBGCRYPT
 	help
 	  A set of tools for auditing wireless networks