armv7: psci: make v7_flush_dcache_all public for all psci code

The v7_flush_dcache_all function will be called by ls102xa platform system
suspend, it is necessary to make it a public call instead of a local one, but
changing the LENTRY to ENTRY isn't enough, because there is another one using
the same name, so this one gets a psci_ prefix.

Signed-off-by: Hongbo Zhang <hongbo.zhang@nxp.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: York Sun <york.sun@nxp.com>

arch/arm/cpu/armv7/psci.S

@@ -187,7 +187,7 @@ ENDPROC(psci_get_cpu_id)
 .weak psci_get_cpu_id
 
 /* Imported from Linux kernel */
-LENTRY(v7_flush_dcache_all)
+ENTRY(psci_v7_flush_dcache_all)
 	stmfd	sp!, {r4-r5, r7, r9-r11, lr}
 	dmb					@ ensure ordering with previous memory accesses
 	mrc	p15, 1, r0, c0, c0, 1		@ read clidr
@@ -234,7 +234,7 @@ finished:
 	isb
 	ldmfd	sp!, {r4-r5, r7, r9-r11, lr}
 	bx	lr
-ENDPROC(v7_flush_dcache_all)
+ENDPROC(psci_v7_flush_dcache_all)
 
 ENTRY(psci_disable_smp)
 	mrc	p15, 0, r0, c1, c0, 1		@ ACTLR
@@ -264,7 +264,7 @@ ENTRY(psci_cpu_off_common)
 	isb
 	dsb
 
-	bl	v7_flush_dcache_all
+	bl	psci_v7_flush_dcache_all
 
 	clrex					@ Why???
 

arch/arm/include/asm/psci.h

@@ -89,6 +89,8 @@ void psci_cpu_off_common(void);
 int psci_update_dt(void *fdt);
 void psci_board_init(void);
 int fdt_psci(void *fdt);
+
+void psci_v7_flush_dcache_all(void);
 #endif /* ! __ASSEMBLY__ */
 
 #endif /* __ARM_PSCI_H__ */