minicom: fix iconv dependencies, music includes and musl compatibility

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>

utils/minicom/patches/101-fix_music_includes.patch

@@ -0,0 +1,14 @@
+--- a/src/dial.c
++++ b/src/dial.c
+@@ -39,11 +39,9 @@
+ #include "intl.h"
+ 
+ #ifdef VC_MUSIC
+-#  if defined(__GLIBC__)
+ #    include <sys/ioctl.h>
+ #    include <sys/kd.h>
+ #    include <sys/time.h>
+-#  endif
+ #endif
+ 
+ enum { CURRENT_VERSION = 6 };