Add explicit casting to prevent expantion of 32th bit of
u32 into highest half of u64 in several places.

For example, in inject_abt64:
ESR_ELx_EC_DABT_LOW << ESR_ELx_EC_SHIFT = 0x24 << 26.
This operation's result is int with 1 in 32th bit.
While casting this value into u64 (esr is u64) 1
fills 32 highest bits.

Found by Linux Verification Center (linuxtesting.org) with SVACE.

Cc: <stable@vger.kernel.org>
Fixes: aa8eff9b ("arm64: KVM: fault injection into a guest")
Signed-off-by: Anastasia Belova <abelova@astralinux.ru>
Acked-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/stable/20240910085016.32120-1-abelova%40astralinux.ru
Link: https://lore.kernel.org/r/20240910085016.32120-1-abelova@astralinux.ruSigned-off-by: Will Deacon <will@kernel.org>