Add armv6l architecture to list of valid arches

The Raspberry Pi runs the armv6l architecture and apparently
people are trying to run libvirt LXC on it. So we should allow
that as a valid arch
Signed-off-by: NDaniel P. Berrange <berrange@redhat.com>

src/util/virarch.c

@@ -35,6 +35,7 @@ static const struct virArchData {
 } virArchData[] = {
     { "none",          0, VIR_ARCH_LITTLE_ENDIAN },
     { "alpha",        64, VIR_ARCH_BIG_ENDIAN },
+    { "armv6l",       32, VIR_ARCH_LITTLE_ENDIAN },
     { "armv7l",       32, VIR_ARCH_LITTLE_ENDIAN },
     { "cris",         32, VIR_ARCH_LITTLE_ENDIAN },
     { "i686",         32, VIR_ARCH_LITTLE_ENDIAN },

src/util/virarch.h

@@ -27,6 +27,7 @@
 typedef enum {
     VIR_ARCH_NONE,
     VIR_ARCH_ALPHA,        /* Alpha       64 BE http://en.wikipedia.org/wiki/DEC_Alpha */
+    VIR_ARCH_ARMV6L,       /* ARMv6       32 LE http://en.wikipedia.org/wiki/ARM_architecture */
     VIR_ARCH_ARMV7L,       /* ARMv7       32 LE http://en.wikipedia.org/wiki/ARM_architecture */
     VIR_ARCH_CRIS,         /* ETRAX       32 LE http://en.wikipedia.org/wiki/ETRAX_CRIS */
     VIR_ARCH_I686,         /* x86         32 LE http://en.wikipedia.org/wiki/X86 */