Revert "Get rid of _t suffix"

In the very least, a change like this requires discussion on the list.

The naming convention is goofy and it causes a massive merge problem.  Something
like this _must_ be presented on the list first so people can provide input
and cope with it.

This reverts commit 99a0949b720a0936da2052cb9a46db04ffc6db29.

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
diff --git a/hw/xen_machine_pv.c b/hw/xen_machine_pv.c
index 2199e22..162f88d 100644
--- a/hw/xen_machine_pv.c
+++ b/hw/xen_machine_pv.c
@@ -32,7 +32,7 @@
 uint32_t xen_domid;
 enum xen_mode xen_mode = XEN_EMULATE;
 
-static void xen_init_pv(a_ram_addr ram_size,
+static void xen_init_pv(ram_addr_t ram_size,
 			const char *boot_device,
 			const char *kernel_filename,
 			const char *kernel_cmdline,