android: Build ARM with -march=armv7-a
android: Build ARM with -march=armv7-a

This will be required to use the hand-optimized AES implementation in
nettle 2.7.

Signed-off-by: Kevin Cernekee <3105dbb3dd63fbb4f6371cfb04adc6726f76c56b@gmail.com>

don-johnny/openconnect,nmav/openconnect-mine,brandt/openconnect,chadcatlett/openconnect,liiir1985/openconnect,chadcatlett/openconnect,matlockx/openconnect,lins05/openconnect,atyndall/openconnect,mtmiller/openconnect,atyndall/openconnect,matlockx/openconnect,mveplus/openconnect-client,chadcatlett/openconnect,mtmiller/openconnect,neshema/openconnect,cernekee/openconnect,neshema/openconnect,mtmiller/openconnect,lins05/openconnect,chadcatlett/openconnect,mveplus/openconnect-client,atyndall/openconnect,mtmiller/openconnect,nmav/openconnect-mine,lins05/openconnect,brandt/openconnect,brandt/openconnect,nmav/openconnect-mine,liiir1985/openconnect,cernekee/openconnect,matlockx/openconnect,cernekee/openconnect,cernekee/openconnect,nmav/openconnect-mine,mveplus/openconnect-client,neshema/openconnect,brandt/openconnect,mveplus/openconnect-client,liiir1985/openconnect,lins05/openconnect,don-johnny/openconnect,liiir1985/openconnect,atyndall/openconnect,matlockx/openconnect,don-johnny/openconnect,neshema/openconnect,don-johnny/openconnect