topology: utils: add helper to generate PCM capability

Add a helper to generate supported formats of the PCM capability, it is
up to the pipeline format:

for s16_le pipeline, only S16_LE is supported.
for s24_le pipeline, both S16_LE and S24_LE are supported.
for s32_le pipeline, all S16_LE, S24_LE and S32_LE are supported.

For each pipeline, we should use CAPABILITY_FORMAT_NAME(PIPELINE_FORMAT)
in the PCM_CAPABILITIES definition.

Signed-off-by: Keyon Jie <yang.jie@linux.intel.com>

Author: keyonjie

tools/topology/m4/utils.m4

@@ -57,6 +57,15 @@ define(`COMP_FORMAT_VALUE',
 	$1, `s32le', `0x02',
 	)')
 
+dnl CAPABILITY_FORMAT_NAME(BUF_FMT)
+define(`CAPABILITY_FORMAT_NAME',
+`ifelse(
+	$1, `s16le', `S16_LE',
+	$1, `s24le', ``S24_LE,S16_LE'',
+	$1, `s32le', ``S32_LE,S24_LE,S16_LE'',
+	$1, `float', `FLOAT_LE',
+	)')
+
 # note: only support number < 256 at the moment
 dnl DEC2HEX(dec_num)
 define(`DEC2HEX',