powerpc/shared/console: Make console baud rate configurable.

The "powerpc/shared/console" code has the start-up console value fixed
at 9600 baud.  This changes the hard-wired constant "9600" in the code
to the configuration setting "BSP_CONSOLE_BAUD" and adds configuration
support in both the "waf" and the legacy configuration systems.

Note that the VME BSPs beatnik, mvme3100, and mve5100 can be improved
by adding a "mvmexxxx" BSP family. This configuration change, as well
as future configuration changes, could then be made in a "grp.yml" file.

spec/build/bsps/optconsolebaud.yml

@@ -11,6 +11,11 @@ default-by-variant:
   variants:
   - m68k/m5484FireEngine
   - powerpc/hsc_cm01
+  - powerpc/beatnik
+  - powerpc/haleakala
+  - powerpc/motorola_powerpc
+  - powerpc/mvme3100
+  - powerpc/mvme5500
 - value: 19200
   variants:
   - m68k/COBRA5475

spec/build/bsps/powerpc/beatnik/bspbeatnik.yml

@@ -42,6 +42,8 @@ links:
   uid: ../../opto2
 - role: build-dependency
   uid: abi
+- role: build-dependency
+  uid: ../../optconsolebaud
 - role: build-dependency
   uid: optsbrk
 - role: build-dependency

spec/build/bsps/powerpc/haleakala/bsphaleakala.yml

@@ -36,6 +36,8 @@ links:
   uid: ../grp
 - role: build-dependency
   uid: abi
+- role: build-dependency
+  uid: ../../optconsolebaud
 - role: build-dependency
   uid: optsprg
 - role: build-dependency

spec/build/bsps/powerpc/motorola_powerpc/obj.yml

@@ -20,7 +20,9 @@ install:
   source:
   - bsps/powerpc/motorola_powerpc/start/linkcmds
   - bsps/powerpc/shared/start/linkcmds.share
-links: []
+links:
+- role: build-dependency
+  uid: ../../optconsolebaud
 source:
 - bsps/powerpc/motorola_powerpc/console/polled_io.c
 - bsps/powerpc/motorola_powerpc/start/bspreset.c

spec/build/bsps/powerpc/mvme3100/bspmvme3100.yml

@@ -39,6 +39,8 @@ links:
   uid: ../grp
 - role: build-dependency
   uid: abi
+- role: build-dependency
+  uid: ../../optconsolebaud
 - role: build-dependency
   uid: optsbrk
 - role: build-dependency

spec/build/bsps/powerpc/mvme5500/bspmvme5500.yml

@@ -47,6 +47,8 @@ links:
   uid: ../grp
 - role: build-dependency
   uid: abi
+- role: build-dependency
+  uid: ../../optconsolebaud
 - role: build-dependency
   uid: optsbrk
 - role: build-dependency