tegra20: rename tegra2 -> tegra20

This is make naming consistent with the kernel and devicetree and in
preparation of pulling out the common tegra20 code.

Signed-off-by: Allen Martin <amartin@nvidia.com>
Acked-by: Stephen Warren <swarren@wwwdotorg.org>
Tested-by: Thierry Reding <thierry.reding@avionic-design.de>
Signed-off-by: Tom Warren <twarren@nvidia.com>
diff --git a/arch/arm/cpu/armv7/start.S b/arch/arm/cpu/armv7/start.S
index aee27fd..38cce93 100644
--- a/arch/arm/cpu/armv7/start.S
+++ b/arch/arm/cpu/armv7/start.S
@@ -133,7 +133,7 @@
 	orr	r0, r0, #0xd3
 	msr	cpsr,r0
 
-#if !defined(CONFIG_TEGRA2)
+#if !defined(CONFIG_TEGRA20)
 /*
  * Setup vector:
  * (OMAP4 spl TEXT_BASE is not 32 byte aligned.
@@ -149,7 +149,7 @@
 	ldr	r0, =_start
 	mcr	p15, 0, r0, c12, c0, 0	@Set VBAR
 #endif
-#endif	/* !Tegra2 */
+#endif	/* !Tegra20 */
 
 	/* the mask ROM code should have PLL and others stable */
 #ifndef CONFIG_SKIP_LOWLEVEL_INIT
@@ -282,14 +282,14 @@
 /*
  * Move vector table
  */
-#if !defined(CONFIG_TEGRA2)
+#if !defined(CONFIG_TEGRA20)
 #if !(defined(CONFIG_OMAP44XX) && defined(CONFIG_SPL_BUILD))
 	/* Set vector address in CP15 VBAR register */
 	ldr     r0, =_start
 	add     r0, r0, r9
 	mcr     p15, 0, r0, c12, c0, 0  @Set VBAR
 #endif
-#endif /* !Tegra2 */
+#endif /* !Tegra20 */
 
 	ldr	r0, _board_init_r_ofs
 	adr	r1, _start