Fix some bad inclusions of files with internal in the name

configs/arduino-mega2560/src/avr_leds.c

@@ -46,7 +46,7 @@
 #include "up_arch.h"
 #include "up_internal.h"
 
-#include "atmega2560_internal.h"
+#include "atmega2560.h"
 #include "arduino_mega2560.h"
 
 /****************************************************************************

configs/lpc4330-xplorer/src/lpc43_ostest.c

@@ -49,7 +49,7 @@
 
 #include "up_arch.h"
 #include "up_internal.h"
-#include "xplorer-internal.h"
+#include "lpc4330-xplorer.h"
 
 /************************************************************************************
  * Pre-processor Definitions

configs/shenzhou/src/stm32_usb.c

@@ -54,7 +54,7 @@
 #include "up_arch.h"
 #include "stm32.h"
 #include "stm32_otgfs.h"
-#include "shenshou-internal.h"
+#include "shenshou.h"
 
 #ifdef CONFIG_STM32_OTGFS
 

configs/stm32f4discovery/README.txt

@@ -753,7 +753,7 @@ write only so the driver keeps a 128*64/8 = 1KB framebuffer to remember
 the display contents:
 
 Here is how I have the OLED connected.  But you can change this with the
-settings in include/board.h and src/stm324fdiscovery-internal.h.  Connector
+settings in include/board.h and src/stm324fdiscovery.h.  Connector
 pinout for the UG-2864AMBAG01 is specific to the theO.net display board
 that I am using:
 

configs/ubw32/src/pic32_buttons.c

@@ -50,7 +50,7 @@
 #include "up_arch.h"
 
 #include "pic32mx.h"
-#include "ubw-internal.h"
+#include "ubw32.h"
 
 #ifdef CONFIG_ARCH_BUTTONS