fsp1_0/fsp_util: Rename global symbol find_fsp

To avoid error with symbol redefinition (using clang):
src/drivers/intel/fsp1_0/fsp_util.c:111:22: error: invalid symbol redefinition
                ".global find_fsp\n\t"
Rename the asm global symbol to find_fsp_bypass_prologue and fix jmp.

Change-Id: I84c152f9a580fdfc40e9f6e998d2d6484b7f47df
Signed-off-by: Damien Zammit <damien@zamaudio.com>
Reviewed-on: https://review.coreboot.org/21353
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>

src/drivers/intel/fsp1_0/cache_as_ram.inc

@@ -32,7 +32,7 @@ cache_as_ram:
 	 * Make a fake stack that has the return value back to this code.
 	 */
 	lea   fake_fsp_stack, %esp
-	jmp   find_fsp
+	jmp   find_fsp_bypass_prologue
 find_fsp_ret:
 	/* Save the FSP location */
 	mov   %eax,   %ebp

src/drivers/intel/fsp1_0/fsp_util.c

@@ -108,8 +108,8 @@ volatile u8 * find_fsp ()
 
 	/* Entry point for CAR assembly routine */
 	__asm__ __volatile__ (
-		".global find_fsp\n\t"
-		"find_fsp:\n\t"
+		".global find_fsp_bypass_prologue\n\t"
+		"find_fsp_bypass_prologue:\n\t"
 	);
 #else
 	volatile u8 *fsp_ptr;