package/cmake: with BR2_ENABLE_DEBUG use RelWithDebInfo

>From the documentation on BR2_ENABLE_DEBUG, the intention is to get
a build with debug symbols and not a "debug build" since that can have
the unintended consequence of being a different code path then a
release build type definition.

Switch the "Debug" to "RelWithDebInfo" in the cmake package support
to accomodate getting the debug symbols and still be a release
build.

Signed-off-by: Charles Hardin <ckhardin@exablox.com>
Reviewed-by: Samuel Martin <s.martin49@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/pkg-cmake.mk

@@ -87,7 +87,7 @@ define $(2)_CONFIGURE_CMDS
 	PATH=$$(BR_PATH) \
 	$$($$(PKG)_CONF_ENV) $$(HOST_DIR)/usr/bin/cmake $$($$(PKG)_SRCDIR) \
 		-DCMAKE_TOOLCHAIN_FILE="$$(HOST_DIR)/usr/share/buildroot/toolchainfile.cmake" \
-		-DCMAKE_BUILD_TYPE=$$(if $$(BR2_ENABLE_DEBUG),Debug,Release) \
+		-DCMAKE_BUILD_TYPE=$$(if $$(BR2_ENABLE_DEBUG),RelWithDebInfo,Release) \
 		-DCMAKE_INSTALL_PREFIX="/usr" \
 		-DCMAKE_COLOR_MAKEFILE=OFF \
 		-DBUILD_DOC=OFF \