Revert "libbladeRF: update compatibility for FPGA v0.15.0 from libbladeRF 2.4.0 to 2.5.0"

This reverts commit 0c9b7df.

Author: rghilduta

host/libraries/libbladeRF/src/board/bladerf1/compatibility.c

@@ -35,7 +35,7 @@ const struct version_compat_table bladerf1_fw_compat_table = {fw_compat, ARRAY_S
 
 static const struct compat fpga_compat[] = {
     /*    FPGA          requires >=        Firmware */
-    { VERSION(0, 15, 0),                VERSION(2, 5, 0) },
+    { VERSION(0, 15, 0),                VERSION(2, 4, 0) },
     { VERSION(0, 14, 0),                VERSION(2, 4, 0) },
     { VERSION(0, 12, 0),                VERSION(2, 2, 0) },
     { VERSION(0, 11, 1),                VERSION(2, 1, 0) },

host/libraries/libbladeRF/src/board/bladerf2/compatibility.c

@@ -27,7 +27,7 @@ const struct version_compat_table bladerf2_fw_compat_table = {fw_compat, ARRAY_S
 
 static const struct compat fpga_compat[] = {
     /*    FPGA          requires >=        Firmware */
-    { VERSION(0, 15, 0),                VERSION(2, 5, 0) },
+    { VERSION(0, 15, 0),                VERSION(2, 4, 0) },
     { VERSION(0, 14, 0),                VERSION(2, 4, 0) },
     { VERSION(0, 12, 0),                VERSION(2, 2, 0) },
     { VERSION(0, 11, 1),                VERSION(2, 1, 0) },