NuttX Make.defs.in ignore -Werror=logical-op

This is a temporary workaround for equal expressions in chip/sam_xdmac.c
and can be reverted once fixed properly in NuttX. Needed for the GCC 7
upgrade in #8551.

platforms/nuttx/nuttx-configs/Make.defs.in

@@ -51,6 +51,7 @@ CFLAGS = -Os -g2 -I${PX4_SOURCE_DIR}/src/include ${CMAKE_C_FLAGS} -I. -isystem $
 	-Wno-float-equal \
 	-Wno-implicit-fallthrough \
 	-Wno-implicit-function-declaration \
+	-Wno-logical-op \
 	-Wno-maybe-uninitialized \
 	-Wno-missing-declarations \
 	-Wno-missing-field-initializers \