config: intel: use PCH name for tigerlake

We switch to PCH-based names instead of CPU config names for tigerlake+
platforms, because we need to support multiple variants of PCHs based
on one CPU famile - for example TGL-H & TGL-LP.

Signed-off-by: Janusz Jankowski <janusz.jankowski@linux.intel.com>

scripts/xtensa-build-all.sh

@@ -229,7 +229,7 @@ do
 			HAVE_ROM='yes'
 			;;
 		tgl)
-			PLATFORM="tigerlake"
+			PLATFORM="tgplp"
 			ARCH="xtensa-smp"
 			XTENSA_CORE="cavs2x_LX6HiFi3_2017_8"
 			HOST="xtensa-cnl-elf"