net/*/base: allow experimental APIs

This functionality was missed while adding new drivers to
the meson build.

Fixes: bfabd06000 ("net/avf: support meson build")
Fixes: 30d3d01683 ("net/qede: add in meson build")

Signed-off-by: Ilya Maximets <i.maximets@samsung.com>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>

drivers/net/avf/base/meson.build

@@ -8,6 +8,9 @@ sources = [
 
 error_cflags = ['-Wno-pointer-to-int-cast']
 c_args = cflags
+if allow_experimental_apis
+	c_args += '-DALLOW_EXPERIMENTAL_API'
+endif
 foreach flag: error_cflags
 	if cc.has_argument(flag)
 		c_args += flag

drivers/net/qede/base/meson.build

@@ -45,6 +45,9 @@ error_cflags = [
 	'-Wno-pointer-bool-conversion',
 ]
 c_args = cflags
+if allow_experimental_apis
+	c_args += '-DALLOW_EXPERIMENTAL_API'
+endif
 foreach flag: error_cflags
         if cc.has_argument(flag)
                 c_args += flag