thermal/drivers/tsens: Make tsens_xxxx_nvmem static

This patch fixes the following sparse warnings:

drivers/thermal/qcom/tsens-v1.c:24:40: sparse: warning: symbol 'tsens_qcs404_nvmem' was not declared. Should it be static?
drivers/thermal/qcom/tsens-v0_1.c:26:40: sparse: warning: symbol 'tsens_8916_nvmem' was not declared. Should it be static?
drivers/thermal/qcom/tsens-v0_1.c:42:40: sparse: warning: symbol 'tsens_8974_nvmem' was not declared. Should it be static?
drivers/thermal/qcom/tsens-v0_1.c:64:40: sparse: warning: symbol 'tsens_8974_backup_nvmem' was not declared. Should it be static?

No functional change intended.
Signed-off-by: Min-Hua Chen <minhuadotchen@gmail.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20230713160415.149381-1-minhuadotchen@gmail.com

drivers/thermal/qcom/tsens-v0_1.c

@@ -23,7 +23,7 @@
 
 #define BIT_APPEND		0x3
 
-struct tsens_legacy_calibration_format tsens_8916_nvmem = {
+static struct tsens_legacy_calibration_format tsens_8916_nvmem = {
 	.base_len = 7,
 	.base_shift = 3,
 	.sp_len = 5,
@@ -39,7 +39,7 @@ struct tsens_legacy_calibration_format tsens_8916_nvmem = {
 	},
 };
 
-struct tsens_legacy_calibration_format tsens_8974_nvmem = {
+static struct tsens_legacy_calibration_format tsens_8974_nvmem = {
 	.base_len = 8,
 	.base_shift = 2,
 	.sp_len = 6,
@@ -61,7 +61,7 @@ struct tsens_legacy_calibration_format tsens_8974_nvmem = {
 	},
 };
 
-struct tsens_legacy_calibration_format tsens_8974_backup_nvmem = {
+static struct tsens_legacy_calibration_format tsens_8974_backup_nvmem = {
 	.base_len = 8,
 	.base_shift = 2,
 	.sp_len = 6,

drivers/thermal/qcom/tsens-v1.c

@@ -21,7 +21,7 @@
 #define TM_HIGH_LOW_INT_STATUS_OFF		0x0088
 #define TM_HIGH_LOW_Sn_INT_THRESHOLD_OFF	0x0090
 
-struct tsens_legacy_calibration_format tsens_qcs404_nvmem = {
+static struct tsens_legacy_calibration_format tsens_qcs404_nvmem = {
 	.base_len = 8,
 	.base_shift = 2,
 	.sp_len = 6,