[dv] Add a "chip_level" fusesoc flag

This gets defined in the cores for chip environments. The advantage is
that these cores can now depend on the environments of IPs, which
won't generate their own RAL definitions (because the chip-level
environment has done it already).

PARTIAL: chip_level flag

Signed-off-by: Rupert Swarbrick <rswarbrick@lowrisc.org>

Author: rswarbrick

hw/dv/tools/ralgen/README.md

@@ -47,4 +47,4 @@ targets:
     filesets:
       - files_dv
     generate:
-      - ral
+      - "!chip_level ? (ral)"

hw/ip/adc_ctrl/dv/env/adc_ctrl_env.core

@@ -63,4 +63,4 @@ targets:
       - files_rtl
       - files_dv
     generate:
-      - ral
+      - "!chip_level ? (ral)"

hw/ip/aes/dv/env/aes_env.core

@@ -45,4 +45,4 @@ targets:
     filesets:
       - files_dv
     generate:
-      - ral
+      - "!chip_level ? (ral)"

hw/ip/aon_timer/dv/env/aon_timer_env.core

@@ -50,4 +50,4 @@ targets:
     filesets:
       - files_dv
     generate:
-      - ral
+      - "!chip_level ? (ral)"

hw/ip/csrng/dv/env/csrng_env.core

@@ -56,4 +56,4 @@ targets:
     filesets:
       - files_dv
     generate:
-      - ral
+      - "!chip_level ? (ral)"

hw/ip/dma/dv/env/dma_env.core

@@ -45,4 +45,4 @@ targets:
     filesets:
       - files_dv
     generate:
-      - ral
+      - "!chip_level ? (ral)"

hw/ip/edn/dv/env/edn_env.core

@@ -53,4 +53,4 @@ targets:
     filesets:
       - files_dv
     generate:
-      - ral
+      - "!chip_level ? (ral)"

hw/ip/entropy_src/dv/env/entropy_src_env.core

@@ -51,4 +51,4 @@ targets:
     filesets:
       - files_dv
     generate:
-      - ral
+      - "!chip_level ? (ral)"

hw/ip/hmac/dv/env/hmac_env.core

@@ -77,4 +77,4 @@ targets:
     filesets:
       - files_dv
     generate:
-      - ral
+      - "!chip_level ? (ral)"