kconfig: remove Enable from boolean prompts

According to Kconfig guidelines, boolean prompts must not start with
"Enable...". The following command has been used to automate the changes
in this patch:

sed -i "s/bool \"[Ee]nables\? \(\w\)/bool \"\U\1/g" **/Kconfig*

Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>

drivers/i2c/Kconfig

@@ -14,7 +14,7 @@ menuconfig I2C
 if I2C
 
 config I2C_SHELL
-	bool "Enable I2C Shell"
+	bool "I2C Shell"
 	default y
 	depends on SHELL
 	help
@@ -23,7 +23,7 @@ config I2C_SHELL
 	  The I2C shell currently support scanning and bus recovery.
 
 config I2C_STATS
-	bool "Enable I2C device Stats"
+	bool "I2C device Stats"
 	depends on STATS
 	help
 	  Enable I2C Stats.

drivers/i2c/Kconfig.sam0

@@ -9,7 +9,7 @@ menuconfig I2C_SAM0
 	  Enable the SAM0 series SERCOM I2C driver.
 
 config I2C_SAM0_DMA_DRIVEN
-	bool "Enable DMA support for SAM0 I2C devices"
+	bool "DMA support for SAM0 I2C devices"
 	depends on I2C_SAM0
 	select DMA
 	help