[chirp_devel] [PATCH 2 of 3] [UV-25X2] Fix spmute for BTech UV-25X2 and similar radio models

[Jim Unroe]

# HG changeset patch
# User Jim Unroe <rock.unroe at gmail.com>
# Date 1605997177 18000
#      Sat Nov 21 17:19:37 2020 -0500
# Node ID fd28cca177b0af63e464bdbf4481f5ca89a6c831
# Parent  a4f9774963e81a9e5cee2afd5d62fe0fcb26c15d
[UV-25X2] Fix spmute for BTech UV-25X2 and similar radio models

This patch fixes spmute in the btech driver structure that supports
the the following (and similar) models.

BTech UV-25X2, UV-25X4, UV-50X2
QYT KT7900D, KT8900D, KT8900R
Surecom S-KT8900D
Radioddity QB25

Related to #8463

diff -r a4f9774963e8 -r fd28cca177b0 chirp/drivers/btech.py
--- a/chirp/drivers/btech.py	Sat Nov 21 17:18:50 2020 -0500
+++ b/chirp/drivers/btech.py	Sat Nov 21 17:19:37 2020 -0500
@@ -3513,8 +3513,8 @@
   u8 unknown0:4,
      scode:4;
   u8 unknown1:2,
-     spmute:1,
-     unknown2:3,
+     spmute:2,
+     unknown2:2,
      optsig:2;
   u8 unknown3:3,
      scramble:1,