pinctrl: actions: remove MODULE_LICENSE in non-modules

Since commit 8b41fc4454e ("kbuild: create modules.builtin without
Makefile.modbuiltin or tristate.conf"), MODULE_LICENSE declarations
are used to identify modules. As a consequence, uses of the macro
in non-modules will cause modprobe to misidentify their containing
object file as a module when it is not (false positives), and modprobe
might succeed rather than failing with a suitable error message.

So remove it in the files in this commit, none of which can be built as
modules.

Signed-off-by: Nick Alcock <nick.alcock@oracle.com>
Suggested-by: Luis Chamberlain <mcgrof@kernel.org>
Cc: Luis Chamberlain <mcgrof@kernel.org>
Cc: linux-modules@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: Hitomi Hasegawa <hasegawa-hitomi@fujitsu.com>
Cc: "Andreas Färber" <afaerber@suse.de>
Cc: Manivannan Sadhasivam <mani@kernel.org>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-actions@lists.infradead.org
Cc: linux-gpio@vger.kernel.org
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>

pinctrl: actions: pinctrl-s500: Constify s500_padinfo[]

s500_padinfo[] is never modified and should be made 'const' to allow
the compiler to optimize code generation, i.e. put it in the text
section instead of the data section.

Before:
text data bss dec hex filename
12503 5088 0 17591 44b7 drivers/pinctrl/actions/pinctrl-s500.o

After:
text data bss dec hex filename
14435 3156 0 17591 44b7 drivers/pinctrl/actions/pinctrl-s500.o

Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@gmail.com>
Link: https://lore.kernel.org/r/24505deb08d050eb4ce38f186f4037d7541ea217.1605722628.git.cristian.ciocaltea@gmail.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

pinctrl: actions: Add Actions S500 pinctrl driver

Add pinctrl and gpio driver for Actions Semi S500 SoC.

The driver supports pinctrl, pinmux, pinconf, gpio and interrupt
functions using a set of registers shared between gpio and pinctrl.

Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@gmail.com>
Link: https://lore.kernel.org/r/ce11c15f2f72798a8d740f8a7d5cbf1e6d70974a.1596461275.git.cristian.ciocaltea@gmail.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>