treewide: Remove the unnecessary space before semicolon

%s/return ;/return;

Signed-off-by: Bin Meng <bmeng@tinylab.org>
diff --git a/arch/powerpc/lib/bootm.c b/arch/powerpc/lib/bootm.c
index 5127878..8ae8d8a 100644
--- a/arch/powerpc/lib/bootm.c
+++ b/arch/powerpc/lib/bootm.c
@@ -113,7 +113,7 @@
 			   cmd_start, cmd_end, 0, 0);
 		/* does not return */
 	}
-	return ;
+	return;
 }
 
 void arch_lmb_reserve(struct lmb *lmb)
@@ -148,7 +148,7 @@
 	cpu_mp_lmb_reserve(lmb);
 #endif
 
-	return ;
+	return;
 }
 
 static void boot_prep_linux(struct bootm_headers *images)