kconfig: Standardize "depends" -> "depends on" in Kconfig files

Standardize the miniscule percentage of occurrences of "depends" in
Kconfig files to "depends on", and update kconfig-language.txt to
reflect that.

Signed-off-by: Robert P. J. Day <rpjday@mindspring.com>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
diff --git a/drivers/serial/Kconfig b/drivers/serial/Kconfig
index 0b36dd5c..2978c09 100644
--- a/drivers/serial/Kconfig
+++ b/drivers/serial/Kconfig
@@ -663,7 +663,7 @@
 
 config V850E_UARTB
         bool
-	depends V850E_UART && V850E_ME2
+	depends on V850E_UART && V850E_ME2
 	default y
 
 config V850E_UART_CONSOLE
@@ -909,7 +909,7 @@
 
 config SERIAL_TXX9
 	bool "TMPTX39XX/49XX SIO support"
-	depends HAS_TXX9_SERIAL
+	depends on HAS_TXX9_SERIAL
 	select SERIAL_CORE
 	default y