Revert "drivers: custom_voltage: Fix for compile error"

This reverts commit 06a99105803cf7006ffc98de5508c0dacc8e2517.
Revert "Code cleanup."

This reverts commit cf3f19a6bfa6986731384981e4e2926fdf56b985.
Revert "Added Custom Voltage version 1."

This reverts commit 4e0a9fe7d9c401900db3acd7859455889793d498.
Revert "Revert "Added Custom Voltage version 3.""

This reverts commit 339d2c3e85b6c26fe30edf186f82192a7aafb62f.
Revert "Added Custom Voltage version 3."

This reverts commit af327aa76ca5a97ad0a236973786811222b43803.
Revert "Properly apply volume boost on volume change."

This reverts commit 04bdd8372161d496d394e3661b5b57c688f74061.
Revert "If headphones are (un)plugged and the codec driver has not been initialized"

This reverts commit fe48eb3693deaab83603745b658a1cf734fa1122.
Revert "Fit to SU760"

This reverts commit 765962b15700004cd3fee9d39e01012b69625d1d.
Revert "The headset power mode is kept on high-performance while no headset is"

This reverts commit c8f7c3b8ab4db7681800f6fe3896c88dc2024c44.
Revert "TWL6040_RAMP_ZERO is only used for changing the headset volume."

This reverts commit c1d97a9e79f8eb2842e69144fca11937d49540c4.
Revert "Added Sound Control version 1."

This reverts commit 0d513fc23e004587a212e8ac3c5eed4ef5f907d9.
Added Sound Control version 1.

Conflicts:

	drivers/misc/Kconfig
	drivers/misc/Makefile
	sound/soc/codecs/twl6040.c

Conflicts:
	drivers/misc/Kconfig
	drivers/misc/Makefile
Revert "Added Sound Control version 1."

This reverts commit 0d513fc23e004587a212e8ac3c5eed4ef5f907d9.