disas: nanoMIPS: Fix an FP-related misnomer 1

Rename NMD::extract_fd_10_9_8_7_6(uint64 instruction) to
NMD::extract_fd_15_14_13_12_11(uint64 instruction).

Reviewed-by: Aleksandar Rikalo <arikalo@wavecomp.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
diff --git a/disas/nanomips.h b/disas/nanomips.h
index d3722f6..d595092 100644
--- a/disas/nanomips.h
+++ b/disas/nanomips.h
@@ -176,7 +176,7 @@
     uint64 extract_ct_25_24_23_22_21(uint64 instruction);
     uint64 extract_eu_3_2_1_0(uint64 instruction);
     uint64 extract_eu_6_5_4_3_2_1_0(uint64 instruction);
-    uint64 extract_fd_10_9_8_7_6(uint64 instruction);
+    uint64 extract_fd_15_14_13_12_11(uint64 instruction);
     uint64 extract_fs_15_14_13_12_11(uint64 instruction);
     uint64 extract_ft_15_14_13_12_11(uint64 instruction);
     uint64 extract_ft_20_19_18_17_16(uint64 instruction);