[PATCH website v1 4/5] doc: generalize ARM64 Cobalt build notes

From: guang feng wang <[email protected]>

The ARM64 Cobalt kernel build example still refers to a Raspberry Pi 3
and Cortex-A53 setup, and mentions a Linaro toolchain explicitly.

Generalize the wording to describe a typical AArch64 cross build while
keeping aarch64-linux-gnu- as the example toolchain prefix.

Signed-off-by: guang feng wang <[email protected]>
---
 content/installation/_index.md | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/content/installation/_index.md b/content/installation/_index.md
index 4eaafcb..12cf726 100644
--- a/content/installation/_index.md
+++ b/content/installation/_index.md
@@ -280,9 +280,8 @@ location
 
 #### Building Cobalt/arm64 kernel {#x3-build-cobalt-arm64}
 
-Using Linaro toolchain with the prefix aarch64-linux-gnu- and compiling
-for the raspberry pi 3 board (cortex-a53), cross compiling is as
-follows:
+Using an AArch64 cross toolchain with the prefix `aarch64-linux-gnu-`,
+a typical ARM64 cross build is as follows:
 
     $ cd $linux_tree
     $ $xenomai_root/scripts/prepare-kernel.sh --arch=arm64 \
-- 
2.34.1