Kconfig: Handle LV_SPRINTF_DISABLE_FLOAT (#1988)

* Kconfig: Handle LV_SPRINTF_DISABLE_FLOAT

* Update CHANGELOG

* Remove debug code

Co-authored-by: Gabor Kiss-Vamosi <kisvegabor@gmail.com>

CHANGELOG.md

@@ -15,9 +15,11 @@
 - fix(textarea) buffer overflow in password mode with UTF-8 characters
 - fix(textarea) cursor position after hiding character in password mode
 - fix(linemeter) draw critical lines with correct color
+- fix(kconfig) handle disable sprintf float correctly.
 - fix(layout) stop layout after recursion threshold is reached
 - fix(gauge) fix redraw with image needle
 
+
 ## v7.8.1
 
 ### Bugfixes

src/lv_conf_kconfig.h

@@ -400,6 +400,18 @@ extern "C" {
 #endif
 #endif
 
+/*------------------
+ * SPRINTF DISABLE FLOAT
+ *-----------------*/
+
+#ifndef LV_SPRINTF_DISABLE_FLOAT
+#ifndef CONFIG_LV_SPRINTF_DISABLE_FLOAT
+#define LV_SPRINTF_DISABLE_FLOAT    0
+#else
+#define LV_SPRINTF_DISABLE_FLOAT    1
+#endif
+#endif
+
 #ifdef __cplusplus
 } /* extern "C" */
 #endif