Merge tag 'intel-gpio-v4.21-1' of git://git.kernel.org/pub/scm/linux/kernel/git/andy/linux-gpio-intel into devel

intel-gpio for v4.21-1

Use managed resource allocation in pch and sodaville drivers.
Switch to use for_each_set_bit() in IRQ handlers.
Headers clean up.
Sort headers in inclusion block alphabetically for better maintenance.
Convert to SPDX identifier and fixing MODULE_LICENSE() when appropriate.
Additional format fixes to rectify debug and message printing.

There is a commit which had been applied to v4.20-rc4, that's why dup.

- c3bc3ff9 MAINTAINERS: Do maintain Intel GPIO drivers via separate tree

The following is an automated git shortlog grouped by driver:

ich:
 -  Convert to use SPDX identifier
 -  Sort headers alphabetically
 -  Join string literals back
 -  Convert pr_<level> to dev_<level>
 -  Switch to use struct device instead of platform_device
 -  Simplify error handling in ichx_write_bit()

intel-mid:
 -  Convert to use SPDX identifier
 -  Remove linux/module.h and sort headers

lynxpoint:
 -  Convert to use SPDX identifier
 -  Remove linux/init.h and sort headers
 -  Use for_each_set_bit() in IRQ handler

MAINTAINERS:
 -  Do maintain Intel GPIO drivers via separate tree

merrifield:
 -  Convert to use SPDX identifier
 -  Remove linux/init.h

pch:
 -  Convert to use SPDX identifier
 -  Sort headers alphabetically
 -  Remove duplicate assignments
 -  Remove redundant __func__ from debug print
 -  Use for_each_set_bit() in IRQ handler
 -  Convert to dev_pm_ops
 -  Convert to use managed functions pcim_* and devm_*

sch:
 -  Convert to use SPDX identifier
 -  Remove linux/init.h and sort headers

sodaville:
 -  Convert to use SPDX identifier
 -  Sort headers alphabetically
 -  Use for_each_set_bit() in IRQ handler
 -  Convert to use managed functions pcim_* and devm_*