Fix Kconfig style

Remove spaces from Kconfig
Add comments

arch/xtensa/src/esp32s3/Kconfig

@@ -97,7 +97,7 @@ config ESP32S3_INSTRUCTION_CACHE_4WAYS
 config ESP32S3_INSTRUCTION_CACHE_8WAYS
 	bool "8 ways"
 
-endchoice
+endchoice # Instruction cache associated ways
 
 config ESP32S3_ICACHE_ASSOCIATED_WAYS
 	int
@@ -317,7 +317,7 @@ config ESP32S3_I2S0_ROLE_MASTER
 config ESP32S3_I2S0_ROLE_SLAVE
 	bool "Slave"
 
-endchoice
+endchoice # I2S0 role
 
 choice
 	prompt "Bit width"
@@ -339,7 +339,7 @@ config ESP32S3_I2S0_DATA_BIT_WIDTH_24BIT
 config ESP32S3_I2S0_DATA_BIT_WIDTH_32BIT
 	bool "32 bits"
 
-endchoice
+endchoice # Bit width
 
 config ESP32S3_I2S0_DATA_BIT_WIDTH
 	int
@@ -429,7 +429,7 @@ config ESP32S3_I2S1_ROLE_MASTER
 config ESP32S3_I2S1_ROLE_SLAVE
 	bool "Slave"
 
-endchoice
+endchoice # I2S1 role
 
 choice
 	prompt "Bit width"

drivers/usbdev/Kconfig

@@ -39,7 +39,7 @@ config USBDEV_BUSPOWERED
 	---help---
 		Will cause USB features to indicate that the device is not self-powered
 
-endchoice
+endchoice # Select USB device powered
 
 config USBDEV_MAXPOWER
 	int "Maximum power consumption in mA"
@@ -264,7 +264,7 @@ config COMPOSITE_DEVICES
 	---help---
 		Composite device class object number.
 
-endif
+endif # USBDEV_COMPOSITE
 
 config PL2303
 	bool "Prolific PL2303 serial/USB converter emulation"
@@ -362,7 +362,8 @@ config PL2303_VENDORSTR
 config PL2303_PRODUCTSTR
 	string "Product string"
 	default "PL2303 Emulation"
-endif
+
+endif # PL2303
 
 menuconfig CDCACM
 	bool "USB Modem (CDC/ACM) support"
@@ -421,7 +422,7 @@ config CDCACM_EPINTIN
 		The logical 7-bit address of a hardware endpoint that supports
 		interrupt IN operation.  Default 1.
 
-endif
+endif # !CDCACM_COMPOSITE
 
 config CDCACM_EPINTIN_FSSIZE
 	int "Interrupt IN full speed MAXPACKET size"
@@ -453,7 +454,7 @@ config CDCACM_EPBULKOUT
 		The logical 7-bit address of a hardware endpoint that supports
 		bulk OUT operation.  Default: 3
 
-endif
+endif # !CDCACM_COMPOSITE
 
 config CDCACM_EPBULKOUT_FSSIZE
 	int "Bulk OUT full speed MAXPACKET size"