Renamed the pi-specific functions to be a bit cleaner.

--HG--
branch : dtrg-videocore
rename : plat/rpi/libsys/phys_to_user.s => plat/rpi/libsys/pi_phys_to_user.s
rename : plat/rpi/libsys/uart.s => plat/rpi/libsys/pi_uart.s
rename : plat/rpi/libsys/user_to_phys.s => plat/rpi/libsys/pi_user_to_phys.s

plat/rpi/libsys/pi_phys_to_user.s

@@ -12,8 +12,8 @@
 
 ! Transforms a physical address into a user address.
 
-.define _phys_to_user
-_phys_to_user:
+.define _pi_phys_to_user
+_pi_phys_to_user:
 	ld r0, 0 (sp)
 	sub r0, gp
 	b lr

plat/rpi/libsys/pi_uart.s

@@ -38,8 +38,8 @@ AUX_MU_BAUD_REG = 0x7e215068
 
 ! Sets up the mini UART for use as a console.
 
-.define _init_uart
-_init_uart:
+.define _pi_init_uart
+_pi_init_uart:
 	! Configure TX and RX GPIO pins for Mini Uart function.
 	mov	r1, #GPFSEL1
 	ld	r0, (r1)

plat/rpi/libsys/pi_user_to_phys.s

@@ -12,8 +12,8 @@
 
 ! Transforms a user address into a physical address.
 
-.define _user_to_phys
-_user_to_phys:
+.define _pi_user_to_phys
+_pi_user_to_phys:
 	ld r0, 0 (sp)
 	add r0, gp
 	b lr