Convert CONFIG_CMD_HD44760 to Kconfig

This converts the following to Kconfig:
   CONFIG_CMD_HD44760

Also drop CONFIG_CMD_HD44780 which appears to be a typo.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/board/work-microwave/work_92105/Kconfig b/board/work-microwave/work_92105/Kconfig
index 74f004f..1fde4b2 100644
--- a/board/work-microwave/work_92105/Kconfig
+++ b/board/work-microwave/work_92105/Kconfig
@@ -12,4 +12,9 @@
 config SYS_CONFIG_NAME
 	default "work_92105"
 
+config CMD_HD44760
+	bool "Enable 'hd44780' LCD-control comand"
+	help
+	  This controls the LCD driver.
+
 endif
diff --git a/board/work-microwave/work_92105/work_92105_display.c b/board/work-microwave/work_92105/work_92105_display.c
index 3d7438e..37a7363 100644
--- a/board/work-microwave/work_92105/work_92105_display.c
+++ b/board/work-microwave/work_92105/work_92105_display.c
@@ -346,4 +346,4 @@
 	"HD44780 LCD driver control",
 	hd44780_help_text
 );
-#endif /* CONFIG_CMD_HD44780 */
+#endif /* CONFIG_CMD_HD44760 */
diff --git a/configs/work_92105_defconfig b/configs/work_92105_defconfig
index 9ce932f2..06b31ba 100644
--- a/configs/work_92105_defconfig
+++ b/configs/work_92105_defconfig
@@ -4,6 +4,7 @@
 CONFIG_SPL_LIBGENERIC_SUPPORT=y
 CONFIG_SPL_SERIAL_SUPPORT=y
 CONFIG_SPL_NAND_SUPPORT=y
+CONFIG_CMD_HD44760=y
 CONFIG_BOOTDELAY=3
 CONFIG_VERSION_VARIABLE=y
 # CONFIG_DISPLAY_BOARDINFO is not set
diff --git a/include/configs/work_92105.h b/include/configs/work_92105.h
index 65db858..56f53b9 100644
--- a/include/configs/work_92105.h
+++ b/include/configs/work_92105.h
@@ -134,7 +134,6 @@
 #define CONFIG_LPC32XX_SSP
 #define CONFIG_LPC32XX_SSP_TIMEOUT 100000
 #define CONFIG_CMD_MAX6957
-#define CONFIG_CMD_HD44760
 /*
  * Environment
  */
diff --git a/scripts/config_whitelist.txt b/scripts/config_whitelist.txt
index f655ba5..6aaafaf 100644
--- a/scripts/config_whitelist.txt
+++ b/scripts/config_whitelist.txt
@@ -383,7 +383,6 @@
 CONFIG_CMDLINE_EDITING
 CONFIG_CMDLINE_PS_SUPPORT
 CONFIG_CMDLINE_TAG
-CONFIG_CMD_HD44760
 CONFIG_CMD_HD44780
 CONFIG_CMD_HDMIDETECT
 CONFIG_CMD_IDE