spp: intel_adsp_ace15_mtpm.conf: set DRC as built-in

Set DRC back as built-in (CONFIG_COMP_DRC=y) for these platforms.
DRC is now part of many common upstream topologies and as MTL
is a shipping platform, we cannot guarantee end-users have
sufficiently new kernel to support module loading.

Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>

app/boards/intel_adsp_ace15_mtpm.conf

@@ -4,7 +4,7 @@ CONFIG_IPC4_BASE_FW_INTEL=y
 
 CONFIG_COMP_SRC_IPC4_FULL_MATRIX=y
 CONFIG_COMP_SRC_LITE=y
-CONFIG_COMP_DRC=m
+CONFIG_COMP_DRC=y
 CONFIG_COMP_CROSSOVER=y
 CONFIG_COMP_MULTIBAND_DRC=y
 CONFIG_COMP_MFCC=y