qemu_capabilities: Expose qemu <-> libvirt arch translators

In some cases, the string representing architecture is different
in qemu and libvirt. That is the reason why we have
virQEMUCapsArchFromString() and virQEMUCapsArchToString(). So
far, we did not need them outside of qemu_capabilities code, but
this will change shortly. Expose them then.
Signed-off-by: NMichal Privoznik <mprivozn@redhat.com>
Reviewed-by: NLaszlo Ersek <lersek@redhat.com>
Reviewed-by: NDaniel P. Berrangé <berrange@redhat.com>

src/qemu/qemu_capabilities.c

@@ -616,7 +616,7 @@ static int virQEMUCapsOnceInit(void)
 
 VIR_ONCE_GLOBAL_INIT(virQEMUCaps);
 
-static virArch virQEMUCapsArchFromString(const char *arch)
+virArch virQEMUCapsArchFromString(const char *arch)
 {
     if (STREQ(arch, "i386"))
         return VIR_ARCH_I686;
@@ -629,7 +629,7 @@ static virArch virQEMUCapsArchFromString(const char *arch)
 }
 
 
-static const char *virQEMUCapsArchToString(virArch arch)
+const char *virQEMUCapsArchToString(virArch arch)
 {
     if (arch == VIR_ARCH_I686)
         return "i386";

src/qemu/qemu_capabilities.h

@@ -643,4 +643,7 @@ bool virQEMUCapsCPUFilterFeatures(const char *name,
 virSEVCapabilityPtr
 virQEMUCapsGetSEVCapabilities(virQEMUCapsPtr qemuCaps);
 
+virArch virQEMUCapsArchFromString(const char *arch);
+const char *virQEMUCapsArchToString(virArch arch);
+
 #endif /* LIBVIRT_QEMU_CAPABILITIES_H */