configs: tizen_bpif3: Enable DM_REGULATOR_SPACEMIT_HUB config

configs: tizen_bpif3: Enable DM_REGULATOR_SPACEMIT_HUB config

Enable DM_REGULATOR_SPACEMIT_HUB configuration to use the usb.
While start usb, it can't find vbus-supply like below.

U-boot> usb start
starting USB...
Bus dwc3@c0a00000: No USB maximum speed specified. Using super speed
mv_usb_phy usb2phy@0xc0a30000: k1x-ci-usb-phy-probe: Enter...
k1x_combphy phy@c0b10000: USB3 PHY init.
dwc3-generic-host dwc3@c0a00000: this is a DesignWare USB3 DRD Core
dwc3-generic-host dwc3@c0a00000: Failed to retrieve vbus-supply regulator, (err=-19)Port not available.

Change-Id: I5a30b67ef83e59f75f6b0c204011a73c57a9eff6
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>