acp_7_x: board: enable ACP DMA log backend

Enable CONFIG_LOG_BACKEND_ACP on the ACP 7.X ADSP board and
the  firmware logs are streamed to the host over ACP DMA.
Set the SOF log level to INF explicitly, as the SOF log
level configuration must be selected explicitly.

Signed-off-by: DineshKumar Kalva <DineshKumar.Kalva@amd.com>

Author: DINESHKUMARK1

app/boards/acp_7_x_adsp.conf

@@ -58,3 +58,8 @@ CONFIG_XTENSA_INTERRUPT_NONPREEMPTABLE=y
 CONFIG_DEBUG_COREDUMP=y
 CONFIG_DEBUG_COREDUMP_BACKEND_AMD_ACP_PANIC_DUMP=y
 CONFIG_DEBUG_COREDUMP_MEMORY_DUMP_MIN=y
+CONFIG_LOG_BACKEND_ACP=y
+# Set INF log level: SOF log level configs must be set explicitly
+CONFIG_LOG_DEFAULT_LEVEL=3
+CONFIG_LOG_MAX_LEVEL=3
+CONFIG_SOF_LOG_LEVEL_INF=y