regulator: palmas: Squelch sparse warnings
regulator: palmas: Squelch sparse warnings

convert to static variables to squelch the following sparse warnings:
drivers/regulator/palmas-regulator.c:325:36: warning: symbol 'palma_sleep_req_info' was not declared. Should it be static?
drivers/regulator/palmas-regulator.c:1414:32: warning: symbol 'palmas_ddata' was not declared. Should it be static?
drivers/regulator/palmas-regulator.c:1427:32: warning: symbol 'tps65917_ddata' was not declared. Should it be static?

Signed-off-by: Nishanth Menon <50c3c575ce2bb12c45e20736ce59e86fe81915b4@ti.com>
Tested-by: Stephen Warren <5ef2a23ba3aff51d1cfc8c113c1ec34b608b3b13@nvidia.com>
Tested-by: Keerthy <bd0da4b944f4f5c71572cb1afabf3c293f45b4c8@ti.com>
Signed-off-by: Mark Brown <b51b9a92386687a9ac927cebfa0f978adeb8cea5@linaro.org>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs