Internal.c was always compiled in because it hosted the function internal_delay()

Move that function to udelay.c and compile internal.c only if really
needed. physmap.c is only needed if the programmer is internal or a PCI
card. Make its compilation conditional.

Corresponding to flashrom svn r822.

Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
Acked-by: Idwer Vollering <vidwer@gmail.com>
diff --git a/flash.h b/flash.h
index fc3dff8..feac98e 100644
--- a/flash.h
+++ b/flash.h
@@ -277,6 +277,7 @@
 /* udelay.c */
 void myusec_delay(int usecs);
 void myusec_calibrate_delay(void);
+void internal_delay(int usecs);
 
 #if NEED_PCI == 1
 /* pcidev.c */
@@ -365,7 +366,6 @@
 uint8_t mmio_readb(void *addr);
 uint16_t mmio_readw(void *addr);
 uint32_t mmio_readl(void *addr);
-void internal_delay(int usecs);
 int noop_shutdown(void);
 void *fallback_map(const char *descr, unsigned long phys_addr, size_t len);
 void fallback_unmap(void *virt_addr, size_t len);