fpga: kconfig: Rename SPL_FPGA_SUPPORT to SPL_FPGA

The patch does sed 's/SPL_FPGA_SUPPORT/SPL_FPGA/g' but also fixing Makefile
and zynqmp.c to simplify if/endif logic in zynqmp.c.

This change is mostly done to be able to use CONFIG_IS_ENABLED macro and
obj-$(CONFIG_$(SPL_)FPGA) in Makefile. For them symbols need to be in sync.

And removing one line from Topic Miami boards which is not needed because
symbol is not enabled via Kconfig.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/Makefile b/drivers/Makefile
index 33126b2..9eb5145 100644
--- a/drivers/Makefile
+++ b/drivers/Makefile
@@ -30,6 +30,7 @@
 obj-$(CONFIG_$(SPL_TPL_)ACPI_PMC) += power/acpi_pmc/
 obj-$(CONFIG_$(SPL_)BOARD) += board/
 obj-$(CONFIG_XEN) += xen/
+obj-$(CONFIG_$(SPL_)FPGA) += fpga/
 
 ifndef CONFIG_TPL_BUILD
 ifdef CONFIG_SPL_BUILD
@@ -60,7 +61,6 @@
 obj-$(CONFIG_OMAP_USB_PHY) += usb/phy/
 obj-$(CONFIG_SPL_SATA_SUPPORT) += ata/ scsi/
 obj-$(CONFIG_HAVE_BLOCK_DEVICE) += block/
-obj-$(CONFIG_SPL_FPGA_SUPPORT) += fpga/
 obj-$(CONFIG_SPL_THERMAL) += thermal/
 
 endif
@@ -85,7 +85,6 @@
 obj-$(CONFIG_CPU) += cpu/
 obj-y += crypto/
 obj-$(CONFIG_FASTBOOT) += fastboot/
-obj-$(CONFIG_FPGA) += fpga/
 obj-y += misc/
 obj-$(CONFIG_MMC) += mmc/
 obj-$(CONFIG_NVME) += nvme/