Generate capstone.pc to the location it is installed from (#1265)

* forcing capstone.pc to be generated in the same place it is installed from

* x86: fix operand access of SETE & SETNE (#1262)

* forcing capstone.pc to be generated in the same place it is installed from
diff --git a/CMakeLists.txt b/CMakeLists.txt
index d21eb1a..c4848a8 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -589,7 +589,7 @@
 
 ## installation
 install(FILES ${HEADERS_COMMON} DESTINATION include/capstone)
-configure_file(capstone.pc.in capstone.pc @ONLY)
+configure_file(capstone.pc.in ${CMAKE_BINARY_DIR}/capstone.pc @ONLY)
 
 if (CAPSTONE_BUILD_STATIC)
     install(TARGETS capstone-static