usb: typec: qcom: set pm8150b_typec_res storage-class-specifier to static

usb: typec: qcom: set pm8150b_typec_res storage-class-specifier to static

smatch reports
drivers/usb/typec/tcpm/qcom/qcom_pmic_typec.c:323:29: warning: symbol
  'pm8150b_typec_res' was not declared. Should it be static?

This variable is only used in its defining file, so it should be static

Signed-off-by: Tom Rix <trix@redhat.com>
Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20230515114043.3452010-1-trix@redhat.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>