target/sparc: Fix register selection for all F*TOx and FxTO* instructions

A bug was introduced in commit 0bba757 which causes the fdtox
and fqtox instructions to incorrectly select the destination registers.
More information and a test program can be found in issue #2802.

Cc: [email protected]
Fixes: 0bba757 ("target/sparc: Perform DFPREG/QFPREG in decodetree")
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2802
Signed-off-by: Mikael Szreder <[email protected]>
Acked-by: Artyom Tarasenko <[email protected]>
[rth: Squash patches together, since the second fixes a typo in the first.]
Signed-off-by: Richard Henderson <[email protected]>
Message-ID: <[email protected]>
(cherry picked from commit 807c3eb)
Signed-off-by: Michael Tokarev <[email protected]>

Author: miszr

target/sparc/insns.decode

@@ -321,12 +321,12 @@ FdMULq      10 ..... 110100 ..... 0 0110 1110 .....        @q_d_d
 FNHADDs     10 ..... 110100 ..... 0 0111 0001 .....        @r_r_r
 FNHADDd     10 ..... 110100 ..... 0 0111 0010 .....        @d_d_d
 FNsMULd     10 ..... 110100 ..... 0 0111 1001 .....        @d_r_r
-FsTOx       10 ..... 110100 00000 0 1000 0001 .....        @r_r2
-FdTOx       10 ..... 110100 00000 0 1000 0010 .....        @r_d2
-FqTOx       10 ..... 110100 00000 0 1000 0011 .....        @r_q2
-FxTOs       10 ..... 110100 00000 0 1000 0100 .....        @r_r2
-FxTOd       10 ..... 110100 00000 0 1000 1000 .....        @d_r2
-FxTOq       10 ..... 110100 00000 0 1000 1100 .....        @q_r2
+FsTOx       10 ..... 110100 00000 0 1000 0001 .....        @d_r2
+FdTOx       10 ..... 110100 00000 0 1000 0010 .....        @d_d2
+FqTOx       10 ..... 110100 00000 0 1000 0011 .....        @d_q2
+FxTOs       10 ..... 110100 00000 0 1000 0100 .....        @r_d2
+FxTOd       10 ..... 110100 00000 0 1000 1000 .....        @d_d2
+FxTOq       10 ..... 110100 00000 0 1000 1100 .....        @q_d2
 FiTOs       10 ..... 110100 00000 0 1100 0100 .....        @r_r2
 FdTOs       10 ..... 110100 00000 0 1100 0110 .....        @r_d2
 FqTOs       10 ..... 110100 00000 0 1100 0111 .....        @r_q2