power: Refactor Makefile rules

Move the power/ rules into drivers/power to avoid clutter in the Makefile
and drivers/Makefile files.

We must select SPL_POWER if SPL_POWER_DOMAIN is used, since the two are
currently independent and boards do not necessarily enable SPL_POWER.

Add a TPL_POWER as well, as that is used by one board.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
diff --git a/drivers/Makefile b/drivers/Makefile
index 01d6bf5..1283b88 100644
--- a/drivers/Makefile
+++ b/drivers/Makefile
@@ -22,6 +22,7 @@
 obj-$(CONFIG_$(SPL_TPL_)PCI) += pci/
 obj-$(CONFIG_$(SPL_TPL_)PHY) += phy/
 obj-$(CONFIG_$(SPL_TPL_)PINCTRL) += pinctrl/
+obj-$(CONFIG_$(SPL_TPL_)POWER) += power/
 obj-$(CONFIG_$(SPL_TPL_)RAM) += ram/
 obj-$(CONFIG_$(SPL_TPL_)RTC) += rtc/
 obj-$(CONFIG_$(SPL_TPL_)SERIAL) += serial/
@@ -32,7 +33,6 @@
 obj-$(CONFIG_$(SPL_)REMOTEPROC) += remoteproc/
 obj-$(CONFIG_$(SPL_)SYSINFO) += sysinfo/
 obj-$(CONFIG_$(SPL_TPL_)TPM) += tpm/
-obj-$(CONFIG_$(SPL_TPL_)ACPI_PMC) += power/acpi_pmc/
 obj-$(CONFIG_XEN) += xen/
 obj-$(CONFIG_$(SPL_)FPGA) += fpga/
 
@@ -47,9 +47,6 @@
 obj-$(CONFIG_$(SPL_)ALTERA_SDRAM) += ddr/altera/
 obj-$(CONFIG_ARCH_IMX8M) += ddr/imx/imx8m/
 obj-$(CONFIG_IMX8ULP_DRAM) += ddr/imx/imx8ulp/
-obj-$(CONFIG_SPL_POWER) += power/ power/pmic/
-obj-$(CONFIG_SPL_POWER) += power/regulator/
-obj-$(CONFIG_SPL_POWER_DOMAIN) += power/domain/
 obj-$(CONFIG_SPL_DM_RESET) += reset/
 obj-$(CONFIG_SPL_ETH) += net/
 obj-$(CONFIG_SPL_ETH) += net/phy/