include int_sqrt.h to have the prototype for the function defined in
this file.
Fixes:
lib/int_sqrt.c:25:15: warning: no previous prototype for 'int_sqrt' [-Wmissing-prototypes]
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Move int_sqrt() out of drivers/video/edid.c so that it is availible to
other parts of Barebox.
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>