staging: brcm80211: remove use of si_* functions from wlc_phy_lcn.c

The source file used si_alp_clock to determine crystal frequency.
It now uses the si_pmu_alp_clock call instead to remove dependency from
siutils functionality.

Cc: devel@linuxdriverproject.org
Cc: linux-wireless@vger.kernel.org
Cc: Brett Rudley <brudley@broadcom.com>
Cc: Henry Ptasinski <henryp@broadcom.com>
Cc: Roland Vossen <rvossen@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/staging/brcm80211/brcmsmac/phy/wlc_phy_lcn.c

@@ -5053,7 +5053,7 @@ bool wlc_phy_attach_lcnphy(phy_info_t *pi)
 		pi->hwpwrctrl_capable = true;
 	}
 
-	pi->xtalfreq = si_alp_clock(pi->sh->sih);
+	pi->xtalfreq = si_pmu_alp_clock(pi->sh->sih);
 	pi_lcn->lcnphy_papd_rxGnCtrl_init = 0;
 
 	pi->pi_fptr.init = wlc_phy_init_lcnphy;

drivers/staging/brcm80211/util/hndpmu.c

@@ -1425,6 +1425,9 @@ u32 si_pmu_alp_clock(si_t *sih)
 #ifdef BCMDBG
 	char chn[8];
 #endif
+	/* bail out with default */
+	if (!PMUCTL_ENAB(sih))
+		return clock;
 
 	/* Remember original core before switch to chipc */
 	origidx = si_coreidx(sih);