x86: Convert arch_fsp_init() to use events

Convert this to use events instead of calling a function directly in the
init sequence.

Rename it to arch_fsp_init_f() to distinguish it from the one that happens
after relocation.

For FSPv2 nothing needs to be done here, so drop the empty function.

Signed-off-by: Simon Glass <sjg@chromium.org>

common/event.c

@@ -35,6 +35,7 @@ const char *const type_name[] = {
 
 	/* init hooks */
 	"misc_init_f",
+	"fsp_init_r",
 
 	/* Fpga load hook */
 	"fpga_load",