tty/serial: remove CONFIG_EXPERIMENTAL dependencies

As discussed at the kernel summit this year, CONFIG_EXPERIMENTAL means
nothing, so let's get rid of it.

Cc: Kees Cook <keescook@chromium.org>
Cc: Alan Cox <alan@linux.intel.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/tty/serial/Kconfig b/drivers/tty/serial/Kconfig
index 26907cf..84c6f37 100644
--- a/drivers/tty/serial/Kconfig
+++ b/drivers/tty/serial/Kconfig
@@ -693,7 +693,7 @@
 
 config SERIAL_SH_SCI_DMA
 	bool "DMA support"
-	depends on SERIAL_SH_SCI && SH_DMAE && EXPERIMENTAL
+	depends on SERIAL_SH_SCI && SH_DMAE
 
 config SERIAL_PNX8XXX
 	bool "Enable PNX8XXX SoCs' UART Support"
@@ -1303,8 +1303,8 @@
 	  Enable a Altera UART port to be the system console.
 
 config SERIAL_IFX6X60
-        tristate "SPI protocol driver for Infineon 6x60 modem (EXPERIMENTAL)"
-	depends on GPIOLIB && SPI && EXPERIMENTAL
+        tristate "SPI protocol driver for Infineon 6x60 modem"
+	depends on GPIOLIB && SPI
 	help
 	  Support for the IFX6x60 modem devices on Intel MID platforms.