firmware: resolve iwyu warnings

Author: antoinevg

firmware/common/hackrf_core.c

@@ -31,6 +31,7 @@
 
 #include "delay.h"
 #include "gpio.h"
+#include "gpio_lpc.h"
 #include "hackrf_core.h"
 #include "hackrf_ui.h"
 #include "i2c_lpc.h"

firmware/common/rad1o/smallfonts.h

@@ -41,4 +41,6 @@
 /* Partially based on original code for the KS0108 by Stephane Rey */
 /* Current version by Kevin Townsend */
 
+#include "rad1o/fonts.h"
+
 extern const struct FONT_DEF Font_7x8;

firmware/common/rad1o/ubuntu18.h

@@ -1,3 +1,5 @@
 #pragma once
 
+#include "rad1o/fonts.h"
+
 extern const struct FONT_DEF Font_Ubuntu18pt;