Add SoapyLMS7 build instructions for LimeSDR

Build-Linux.md

@@ -122,6 +122,21 @@ build$ sudo ldconfig
 build$ SoapySDRUtil --probe
 ```
 
+### SoapyLMS7 (similar to other Soapy modules):
+
+** Note: requires API from https://github.com/myriadrf/LMS7002M-driver to be installed first.
+```bash  
+$ git clone https://github.com/myriadrf/LimeSuite.git
+$ cd LimeSuite
+LimeSuite$ mkdir builddir #build directory already exists
+LimeSuite$ cd builddir 
+builddir$ cmake .. -DCMAKE_BUILD_TYPE=Release
+builddir$ make 
+builddir$ RESULT=`SoapySDRUtil --sparse --info | grep "Search path:"`; MODULEPATH=${RESULT:12}; sudo cp SoapyLMS7/libLMS7Support.so $MODULEPATH
+builddir$ sudo ldconfig
+builddir$ SoapySDRUtil --probe
+```
+
 - Always ensure to update, build and install SoapySDR before building dependent projects.