arm: k3: use correct weak function name spl_board_prepare_for_linux

Replace the function spl_board_prepare_for_boot_linux by the correct
name of the weak function spl_board_prepare_for_linux defined in spl.h.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
diff --git a/arch/arm/mach-k3/common.c b/arch/arm/mach-k3/common.c
index 9695b22..63bf060 100644
--- a/arch/arm/mach-k3/common.c
+++ b/arch/arm/mach-k3/common.c
@@ -440,7 +440,7 @@
 	dcache_disable();
 }
 
-void spl_board_prepare_for_boot_linux(void)
+void spl_board_prepare_for_linux(void)
 {
 	dcache_disable();
 }