treewide: unify the linker symbol reference format

Now all linker symbols are declared as type char[]. Though we can
reference the address via both the array name 'var' and its address
'&var'. It's better to unify them to avoid confusing developers.
This patch converts all '&var' linker symbol refrences to the most
commonly used format 'var'.

Signed-off-by: Shiji Yang <yangshiji66@outlook.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
diff --git a/lib/trace.c b/lib/trace.c
index 1091a57..4874bef 100644
--- a/lib/trace.c
+++ b/lib/trace.c
@@ -51,7 +51,7 @@
 	uintptr_t offset = (uintptr_t)func_ptr;
 
 #ifdef CONFIG_SANDBOX
-	offset -= (uintptr_t)&_init;
+	offset -= (uintptr_t)_init;
 #else
 	if (gd->flags & GD_FLG_RELOC)
 		offset -= gd->relocaddr;