treewide: Tidy up semicolon after command macros

The U_BOOT_CMD_COMPLETE() macro has a semicolon at the end, perhaps
inadvertently. Some code has taken advantage of this.

Tidy this up by dropping the semicolon from the macro and adding it to
macro invocations as required.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
diff --git a/cmd/qfw.c b/cmd/qfw.c
index d6ecfa6..1b8c775 100644
--- a/cmd/qfw.c
+++ b/cmd/qfw.c
@@ -121,4 +121,4 @@
 	"    - list                             : print firmware(s) currently loaded\n"
 	"    - cpus                             : print online cpu number\n"
 	"    - load <kernel addr> <initrd addr> : load kernel and initrd (if any), and setup for zboot\n"
-)
+);