libxl: fix old style declarations

libxl: fix old style declarations

Fix errors like:

/local/work/xen.git/dist/install/usr/local/include/libxl_uuid.h:59:1: error: 'static' is not at beginning of declaration [-Werror=old-style-declaration]
 void static inline libxl_uuid_copy_0x040400(libxl_uuid *dst,
 ^
/local/work/xen.git/dist/install/usr/local/include/libxl_uuid.h:59:1: error: 'inline' is not at beginning of declaration [-Werror=old-style-declaration]

/local/work/xen.git/dist/install/usr/local/include/libxl.h:1233:1: error: 'static' is not at beginning of declaration [-Werror=old-style-declaration]
 int static inline libxl_domain_create_restore_0x040200(
 ^

Signed-off-by: Wei Liu <wei.liu2@citrix.com>
Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
Release-acked-by: Wei Liu <wei.liu2@citrix.com>