hw/timer: Move extern declaration from .c to .h file

This fixes a warning from smatch (static code analyser).

Fix also the comment with the renamed source file name.
Signed-off-by: NStefan Weil <sw@weilnetz.de>

 hw/timer/tusb6010.c |    3 ---
 include/hw/usb.h    |    7 ++++++-
 2 files changed, 6 insertions(+), 4 deletions(-)
Signed-off-by: NMichael Tokarev <mjt@tls.msk.ru>

hw/timer/tusb6010.c

@@ -282,9 +282,6 @@ static void tusb_gpio_intr_update(TUSBState *s)
     /* TODO: How is this signalled?  */
 }
 
-extern CPUReadMemoryFunc * const musb_read[];
-extern CPUWriteMemoryFunc * const musb_write[];
-
 static uint32_t tusb_async_readb(void *opaque, hwaddr addr)
 {
     TUSBState *s = (TUSBState *) opaque;

include/hw/usb.h

@@ -475,7 +475,8 @@ void usb_host_info(Monitor *mon, const QDict *qdict);
 
 #define VM_USB_HUB_SIZE 8
 
-/* usb-musb.c */
+/* hw/usb/hdc-musb.c */
+
 enum musb_irq_source_e {
     musb_irq_suspend = 0,
     musb_irq_resume,
@@ -494,6 +495,10 @@ enum musb_irq_source_e {
 };
 
 typedef struct MUSBState MUSBState;
+
+extern CPUReadMemoryFunc * const musb_read[];
+extern CPUWriteMemoryFunc * const musb_write[];
+
 MUSBState *musb_init(DeviceState *parent_device, int gpio_base);
 void musb_reset(MUSBState *s);
 uint32_t musb_core_intr_get(MUSBState *s);