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/arch/xtensa/lib/relocate.c b/arch/xtensa/lib/relocate.c
index 3dc8edc..a499590 100644
--- a/arch/xtensa/lib/relocate.c
+++ b/arch/xtensa/lib/relocate.c
@@ -9,8 +9,8 @@
 
 int clear_bss(void)
 {
-	size_t len = (size_t)&__bss_end - (size_t)&__bss_start;
+	size_t len = (size_t)__bss_end - (size_t)__bss_start;
 
-	memset((void *)&__bss_start, 0x00, len);
+	memset((void *)__bss_start, 0x00, len);
 	return 0;
 }