mb/google/brya/variants/primus: To fine tune WWAN power sequencing

Follow the spec to correct the WWAN poweron and powerdown sequences. 

BUG=b:195625346
TEST=USE="project_primus emerge-brya coreboot" and verify it builds
without error.

Signed-off-by: Ariel Fang <ariel_fang@wistron.corp-partner.google.com>
Change-Id: I232d283a9d6093f5da64fcdce44e5cb640e3df0e
Reviewed-on: https://review.coreboot.org/c/coreboot/+/58319
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/mainboard/google/brya/Kconfig.name

@@ -20,6 +20,7 @@ config BOARD_GOOGLE_PRIMUS
 	select BOARD_GOOGLE_BASEBOARD_BRYA
 	select DRIVERS_GENESYSLOGIC_GL9755
 	select SOC_INTEL_ENABLE_USB4_PCIE_RESOURCES
+	select HAVE_WWAN_POWER_SEQUENCE
 
 config BOARD_GOOGLE_GIMBLE
 	bool "->  Gimble"