powerpc: Fix CamelCase checkpatch warnings

85xx, 86xx PowerPC folders have code variables with CamelCase naming conventions.
because of this code checkpatch script generates "WARNING: Avoid CamelCase".

Convert variables name to normal naming convention and modify board, driver
files with updated the new structure.

Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com>
Acked-by: York Sun <yorksun@freescale.com>
diff --git a/board/freescale/mpc8540ads/mpc8540ads.c b/board/freescale/mpc8540ads/mpc8540ads.c
index 7a84cd2..2fb4037 100644
--- a/board/freescale/mpc8540ads/mpc8540ads.c
+++ b/board/freescale/mpc8540ads/mpc8540ads.c
@@ -68,7 +68,7 @@
 
 	get_sys_info(&sysinfo);
 	clkdiv = lbc->lcrr & LCRR_CLKDIV;
-	lbc_hz = sysinfo.freqSystemBus / 1000000 / clkdiv;
+	lbc_hz = sysinfo.freq_systembus / 1000000 / clkdiv;
 
 	if (lbc_hz < 66) {
 		lbc->lcrr = CONFIG_SYS_LBC_LCRR | LCRR_DBYP;	/* DLL Bypass */
diff --git a/board/freescale/mpc8541cds/mpc8541cds.c b/board/freescale/mpc8541cds/mpc8541cds.c
index 3d2dabd..1e21a66 100644
--- a/board/freescale/mpc8541cds/mpc8541cds.c
+++ b/board/freescale/mpc8541cds/mpc8541cds.c
@@ -250,7 +250,7 @@
 
 	get_sys_info(&sysinfo);
 	clkdiv = lbc->lcrr & LCRR_CLKDIV;
-	lbc_hz = sysinfo.freqSystemBus / 1000000 / clkdiv;
+	lbc_hz = sysinfo.freq_systembus / 1000000 / clkdiv;
 
 	if (lbc_hz < 66) {
 		lbc->lcrr |= LCRR_DBYP;	/* DLL Bypass */
diff --git a/board/freescale/mpc8555cds/mpc8555cds.c b/board/freescale/mpc8555cds/mpc8555cds.c
index d4e7abe..ee92695 100644
--- a/board/freescale/mpc8555cds/mpc8555cds.c
+++ b/board/freescale/mpc8555cds/mpc8555cds.c
@@ -248,7 +248,7 @@
 
 	get_sys_info(&sysinfo);
 	clkdiv = lbc->lcrr & LCRR_CLKDIV;
-	lbc_hz = sysinfo.freqSystemBus / 1000000 / clkdiv;
+	lbc_hz = sysinfo.freq_systembus / 1000000 / clkdiv;
 
 	if (lbc_hz < 66) {
 		lbc->lcrr |= LCRR_DBYP;	/* DLL Bypass */
diff --git a/board/freescale/mpc8560ads/mpc8560ads.c b/board/freescale/mpc8560ads/mpc8560ads.c
index a45a558..162636e 100644
--- a/board/freescale/mpc8560ads/mpc8560ads.c
+++ b/board/freescale/mpc8560ads/mpc8560ads.c
@@ -273,7 +273,7 @@
 
 	get_sys_info(&sysinfo);
 	clkdiv = lbc->lcrr & LCRR_CLKDIV;
-	lbc_hz = sysinfo.freqSystemBus / 1000000 / clkdiv;
+	lbc_hz = sysinfo.freq_systembus / 1000000 / clkdiv;
 
 	if (lbc_hz < 66) {
 		lbc->lcrr = CONFIG_SYS_LBC_LCRR | LCRR_DBYP;	/* DLL Bypass */
diff --git a/board/freescale/p1_p2_rdb_pc/ddr.c b/board/freescale/p1_p2_rdb_pc/ddr.c
index 5c51845..c0b72e0 100644
--- a/board/freescale/p1_p2_rdb_pc/ddr.c
+++ b/board/freescale/p1_p2_rdb_pc/ddr.c
@@ -247,7 +247,7 @@
 
 	get_sys_info(&sysinfo);
 	printf("Configuring DDR for %s MT/s data rate\n",
-			strmhz(buf, sysinfo.freqDDRBus));
+			strmhz(buf, sysinfo.freq_ddrbus));
 
 	ddr_size = CONFIG_SYS_SDRAM_SIZE * 1024 * 1024;
 
diff --git a/board/freescale/p1_twr/ddr.c b/board/freescale/p1_twr/ddr.c
index 697c0dd..67f69d7 100644
--- a/board/freescale/p1_twr/ddr.c
+++ b/board/freescale/p1_twr/ddr.c
@@ -53,7 +53,7 @@
 
 	get_sys_info(&sysinfo);
 	printf("Configuring DDR for %s MT/s data rate\n",
-			strmhz(buf, sysinfo.freqDDRBus));
+			strmhz(buf, sysinfo.freq_ddrbus));
 
 	ddr_size = CONFIG_SYS_SDRAM_SIZE * 1024 * 1024;