ACPI: thinkpad-acpi: cleanup Kconfig for thinkpad-acpi

Since ibm-acpi was renamed to thinkpad-acpi, rename and update its Kconfig
entries and Kconfig-related symbols accordingly.

Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>

diff --cc drivers/misc/Kconfig
Simple merge

diff --cc drivers/misc/Makefile
Simple merge

diff --cc drivers/misc/thinkpad_acpi.c
Simple merge

diff --cc drivers/misc/thinkpad_acpi.h
Simple merge