fpga: Use tab instead of space indentation

In FPGA Makefile has both space and tab indentation, to
make them align use tab instead of space indentation.
Signed-off-by: Nava kishore Manne <nava.manne@xilinx.com>
Link: https://lore.kernel.org/r/20220423170235.2115479-5-nava.manne@xilinx.comSigned-off-by: Xu Yilun <yilun.xu@intel.com>

drivers/fpga/Makefile

@@ -18,9 +18,9 @@ obj-$(CONFIG_FPGA_MGR_TS73XX)		+= ts73xx-fpga.o
 obj-$(CONFIG_FPGA_MGR_XILINX_SPI)	+= xilinx-spi.o
 obj-$(CONFIG_FPGA_MGR_ZYNQ_FPGA)	+= zynq-fpga.o
 obj-$(CONFIG_FPGA_MGR_ZYNQMP_FPGA)	+= zynqmp-fpga.o
-obj-$(CONFIG_FPGA_MGR_VERSAL_FPGA)      += versal-fpga.o
-obj-$(CONFIG_ALTERA_PR_IP_CORE)         += altera-pr-ip-core.o
-obj-$(CONFIG_ALTERA_PR_IP_CORE_PLAT)    += altera-pr-ip-core-plat.o
+obj-$(CONFIG_FPGA_MGR_VERSAL_FPGA)	+= versal-fpga.o
+obj-$(CONFIG_ALTERA_PR_IP_CORE)		+= altera-pr-ip-core.o
+obj-$(CONFIG_ALTERA_PR_IP_CORE_PLAT)	+= altera-pr-ip-core-plat.o
 
 # FPGA Bridge Drivers
 obj-$(CONFIG_FPGA_BRIDGE)		+= fpga-bridge.o