[dif/entropy] Add header for entropy_src DIFs

Signed-off-by: Miguel Young de la Sota <mcyoung@google.com>
diff --git a/meson.build b/meson.build
index c6d28e6..d728b4e 100644
--- a/meson.build
+++ b/meson.build
@@ -210,6 +210,7 @@
 hw_ip_alert_handler_reg_h = gen_hw_hdr.process('hw/ip/alert_handler/data/alert_handler.hjson')
 hw_ip_aon_timer_reg_h = gen_hw_hdr.process('hw/ip/aon_timer/data/aon_timer.hjson')
 hw_ip_clkmgr_reg_h = gen_hw_hdr.process('hw/' + TOPNAME + '/ip/clkmgr/data/autogen/clkmgr.hjson')
+hw_ip_entropy_reg_h = gen_hw_hdr.process('hw/ip/entropy_src/data/entropy_src.hjson')
 hw_ip_flash_ctrl_reg_h = gen_hw_hdr.process('hw/' + TOPNAME + '/ip/flash_ctrl/data/autogen/flash_ctrl.hjson')
 hw_ip_gpio_reg_h = gen_hw_hdr.process('hw/ip/gpio/data/gpio.hjson')
 hw_ip_hmac_reg_h = gen_hw_hdr.process('hw/ip/hmac/data/hmac.hjson')