Pull i2c fixes from Wolfram Sang:
"A bunch of driver bugfixes and a MAINTAINERS addition"
* 'i2c/for-current-fixed' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
MAINTAINERS: add entry for STM32 I2C driver
i2c: viperboard: return message count on master_xfer success
i2c: pmcmsp: fix error return from master_xfer
i2c: pmcmsp: return message count on master_xfer success
i2c: designware: fix poll-after-enable regression
eeprom: at24: fix retrieving the at24_chip_data structure
i2c: core: ACPI: Log device not acking errors at dbg loglevel
i2c: core: ACPI: Improve OpRegion read errors